Fully qualify @attr reference to android.R field

Currently, Metalava has some special handling of '@attr ref R.<field>`
references to make sure that they are fully qualified, i.e.
`@attr ref android.R.<field>`. That special handling complicates
Metalava and is blocking some flagged API work so will be removed.
Before that can be done, the existing incorrect documentation needs to
be cleaned up.

This change cleans up those cases in this repo.

Bug: 371997321
Test: Run `m offline-sdk-docs` before and after to make sure that
      there are no differences.
Flag: DOCS_ONLY
Change-Id: Ic3d959fd8e95ac4524be5feb93feae3a08389370
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index faa2107..a421084 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -46,36 +46,36 @@
 /**
  * A view that renders a virtual {@link Keyboard}.
  *
- * @attr ref R.styleable#KeyboardView_keyBackground
- * @attr ref R.styleable#KeyboardView_functionalKeyBackground
- * @attr ref R.styleable#KeyboardView_spacebarBackground
- * @attr ref R.styleable#KeyboardView_spacebarIconWidthRatio
- * @attr ref R.styleable#Keyboard_Key_keyLabelFlags
- * @attr ref R.styleable#KeyboardView_keyHintLetterPadding
- * @attr ref R.styleable#KeyboardView_keyPopupHintLetter
- * @attr ref R.styleable#KeyboardView_keyPopupHintLetterPadding
- * @attr ref R.styleable#KeyboardView_keyShiftedLetterHintPadding
- * @attr ref R.styleable#KeyboardView_keyTextShadowRadius
- * @attr ref R.styleable#KeyboardView_verticalCorrection
- * @attr ref R.styleable#Keyboard_Key_keyTypeface
- * @attr ref R.styleable#Keyboard_Key_keyLetterSize
- * @attr ref R.styleable#Keyboard_Key_keyLabelSize
- * @attr ref R.styleable#Keyboard_Key_keyLargeLetterRatio
- * @attr ref R.styleable#Keyboard_Key_keyLargeLabelRatio
- * @attr ref R.styleable#Keyboard_Key_keyHintLetterRatio
- * @attr ref R.styleable#Keyboard_Key_keyShiftedLetterHintRatio
- * @attr ref R.styleable#Keyboard_Key_keyHintLabelRatio
- * @attr ref R.styleable#Keyboard_Key_keyLabelOffCenterRatio
- * @attr ref R.styleable#Keyboard_Key_keyHintLabelOffCenterRatio
- * @attr ref R.styleable#Keyboard_Key_keyPreviewTextRatio
- * @attr ref R.styleable#Keyboard_Key_keyTextColor
- * @attr ref R.styleable#Keyboard_Key_keyTextColorDisabled
- * @attr ref R.styleable#Keyboard_Key_keyTextShadowColor
- * @attr ref R.styleable#Keyboard_Key_keyHintLetterColor
- * @attr ref R.styleable#Keyboard_Key_keyHintLabelColor
- * @attr ref R.styleable#Keyboard_Key_keyShiftedLetterHintInactivatedColor
- * @attr ref R.styleable#Keyboard_Key_keyShiftedLetterHintActivatedColor
- * @attr ref R.styleable#Keyboard_Key_keyPreviewTextColor
+ * @attr ref android.R.styleable#KeyboardView_keyBackground
+ * @attr ref android.R.styleable#KeyboardView_functionalKeyBackground
+ * @attr ref android.R.styleable#KeyboardView_spacebarBackground
+ * @attr ref android.R.styleable#KeyboardView_spacebarIconWidthRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyLabelFlags
+ * @attr ref android.R.styleable#KeyboardView_keyHintLetterPadding
+ * @attr ref android.R.styleable#KeyboardView_keyPopupHintLetter
+ * @attr ref android.R.styleable#KeyboardView_keyPopupHintLetterPadding
+ * @attr ref android.R.styleable#KeyboardView_keyShiftedLetterHintPadding
+ * @attr ref android.R.styleable#KeyboardView_keyTextShadowRadius
+ * @attr ref android.R.styleable#KeyboardView_verticalCorrection
+ * @attr ref android.R.styleable#Keyboard_Key_keyTypeface
+ * @attr ref android.R.styleable#Keyboard_Key_keyLetterSize
+ * @attr ref android.R.styleable#Keyboard_Key_keyLabelSize
+ * @attr ref android.R.styleable#Keyboard_Key_keyLargeLetterRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyLargeLabelRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyHintLetterRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyShiftedLetterHintRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyHintLabelRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyLabelOffCenterRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyHintLabelOffCenterRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyPreviewTextRatio
+ * @attr ref android.R.styleable#Keyboard_Key_keyTextColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyTextColorDisabled
+ * @attr ref android.R.styleable#Keyboard_Key_keyTextShadowColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyHintLetterColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyHintLabelColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyShiftedLetterHintInactivatedColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyShiftedLetterHintActivatedColor
+ * @attr ref android.R.styleable#Keyboard_Key_keyPreviewTextColor
  */
 public class KeyboardView extends View {
     // XML attributes
diff --git a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
index 00d4fa2..fc8744e 100644
--- a/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
@@ -69,45 +69,45 @@
 /**
  * A view that is responsible for detecting key presses and touch movements.
  *
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextRatio
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextColor
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowRadius
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowColor
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFinalAlpha
- * @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFadeoutAnimator
- * @attr ref R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeoutAnimator
- * @attr ref R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeinAnimator
- * @attr ref R.styleable#MainKeyboardView_keyHysteresisDistance
- * @attr ref R.styleable#MainKeyboardView_touchNoiseThresholdTime
- * @attr ref R.styleable#MainKeyboardView_touchNoiseThresholdDistance
- * @attr ref R.styleable#MainKeyboardView_keySelectionByDraggingFinger
- * @attr ref R.styleable#MainKeyboardView_keyRepeatStartTimeout
- * @attr ref R.styleable#MainKeyboardView_keyRepeatInterval
- * @attr ref R.styleable#MainKeyboardView_longPressKeyTimeout
- * @attr ref R.styleable#MainKeyboardView_longPressShiftKeyTimeout
- * @attr ref R.styleable#MainKeyboardView_ignoreAltCodeKeyTimeout
- * @attr ref R.styleable#MainKeyboardView_keyPreviewLayout
- * @attr ref R.styleable#MainKeyboardView_keyPreviewOffset
- * @attr ref R.styleable#MainKeyboardView_keyPreviewHeight
- * @attr ref R.styleable#MainKeyboardView_keyPreviewLingerTimeout
- * @attr ref R.styleable#MainKeyboardView_keyPreviewShowUpAnimator
- * @attr ref R.styleable#MainKeyboardView_keyPreviewDismissAnimator
- * @attr ref R.styleable#MainKeyboardView_moreKeysKeyboardLayout
- * @attr ref R.styleable#MainKeyboardView_moreKeysKeyboardForActionLayout
- * @attr ref R.styleable#MainKeyboardView_backgroundDimAlpha
- * @attr ref R.styleable#MainKeyboardView_showMoreKeysKeyboardAtTouchPoint
- * @attr ref R.styleable#MainKeyboardView_gestureFloatingPreviewTextLingerTimeout
- * @attr ref R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
- * @attr ref R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
- * @attr ref R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
- * @attr ref R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
- * @attr ref R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
- * @attr ref R.styleable#MainKeyboardView_suppressKeyPreviewAfterBatchInputDuration
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarTextRatio
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarTextColor
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarTextShadowRadius
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarTextShadowColor
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarFinalAlpha
+ * @attr ref android.R.styleable#MainKeyboardView_languageOnSpacebarFadeoutAnimator
+ * @attr ref android.R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeoutAnimator
+ * @attr ref android.R.styleable#MainKeyboardView_altCodeKeyWhileTypingFadeinAnimator
+ * @attr ref android.R.styleable#MainKeyboardView_keyHysteresisDistance
+ * @attr ref android.R.styleable#MainKeyboardView_touchNoiseThresholdTime
+ * @attr ref android.R.styleable#MainKeyboardView_touchNoiseThresholdDistance
+ * @attr ref android.R.styleable#MainKeyboardView_keySelectionByDraggingFinger
+ * @attr ref android.R.styleable#MainKeyboardView_keyRepeatStartTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_keyRepeatInterval
+ * @attr ref android.R.styleable#MainKeyboardView_longPressKeyTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_longPressShiftKeyTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_ignoreAltCodeKeyTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewLayout
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewOffset
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewHeight
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewLingerTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewShowUpAnimator
+ * @attr ref android.R.styleable#MainKeyboardView_keyPreviewDismissAnimator
+ * @attr ref android.R.styleable#MainKeyboardView_moreKeysKeyboardLayout
+ * @attr ref android.R.styleable#MainKeyboardView_moreKeysKeyboardForActionLayout
+ * @attr ref android.R.styleable#MainKeyboardView_backgroundDimAlpha
+ * @attr ref android.R.styleable#MainKeyboardView_showMoreKeysKeyboardAtTouchPoint
+ * @attr ref android.R.styleable#MainKeyboardView_gestureFloatingPreviewTextLingerTimeout
+ * @attr ref android.R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
+ * @attr ref android.R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
+ * @attr ref android.R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
+ * @attr ref android.R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_suppressKeyPreviewAfterBatchInputDuration
  */
 public final class MainKeyboardView extends KeyboardView implements DrawingProxy,
         MoreKeysPanel.Controller {
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureFloatingTextDrawingPreview.java b/java/src/com/android/inputmethod/keyboard/internal/GestureFloatingTextDrawingPreview.java
index 5443c2a..cb50b76 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureFloatingTextDrawingPreview.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureFloatingTextDrawingPreview.java
@@ -35,13 +35,13 @@
  * The class for single gesture preview text. The class for multiple gesture preview text will be
  * derived from it.
  *
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewTextSize
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewTextColor
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewTextOffset
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewColor
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewHorizontalPadding
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewVerticalPadding
- * @attr ref R.styleable#KeyboardView_gestureFloatingPreviewRoundRadius
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewTextSize
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewTextColor
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewTextOffset
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewColor
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewHorizontalPadding
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewVerticalPadding
+ * @attr ref android.R.styleable#KeyboardView_gestureFloatingPreviewRoundRadius
  */
 public class GestureFloatingTextDrawingPreview extends AbstractDrawingPreview {
     protected static final class GesturePreviewTextParams {
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingParams.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingParams.java
index 478639d..eeba678 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingParams.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeDrawingParams.java
@@ -23,10 +23,10 @@
 /**
  * This class holds parameters to control how a gesture stroke is sampled and drawn on the screen.
  *
- * @attr ref R.styleable#MainKeyboardView_gestureTrailMinSamplingDistance
- * @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationAngularThreshold
- * @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationDistanceThreshold
- * @attr ref R.styleable#MainKeyboardView_gestureTrailMaxInterpolationSegments
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailMinSamplingDistance
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailMaxInterpolationAngularThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailMaxInterpolationDistanceThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailMaxInterpolationSegments
  */
 public final class GestureStrokeDrawingParams {
     public final double mMinSamplingDistance; // in pixel
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeRecognitionParams.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeRecognitionParams.java
index 07b1451..e98729d 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeRecognitionParams.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStrokeRecognitionParams.java
@@ -25,16 +25,16 @@
  * This class holds parameters to control how a gesture stroke is sampled and recognized.
  * This class also has parameters to distinguish gesture input events from fast typing events.
  *
- * @attr ref R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
- * @attr ref R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
- * @attr ref R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
- * @attr ref R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
- * @attr ref R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
- * @attr ref R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_gestureStaticTimeThresholdAfterFastTyping
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDetectFastMoveSpeedThreshold
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicThresholdDecayDuration
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicTimeThresholdFrom
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicTimeThresholdTo
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdFrom
+ * @attr ref android.R.styleable#MainKeyboardView_gestureDynamicDistanceThresholdTo
+ * @attr ref android.R.styleable#MainKeyboardView_gestureSamplingMinimumDistance
+ * @attr ref android.R.styleable#MainKeyboardView_gestureRecognitionMinimumTime
+ * @attr ref android.R.styleable#MainKeyboardView_gestureRecognitionSpeedThreshold
  */
 public final class GestureStrokeRecognitionParams {
     // Static threshold for gesture after fast typing
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureTrailDrawingParams.java b/java/src/com/android/inputmethod/keyboard/internal/GestureTrailDrawingParams.java
index 088f03a..074862a 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/GestureTrailDrawingParams.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/GestureTrailDrawingParams.java
@@ -27,11 +27,11 @@
  * sampled and interpolated. This class controls how those gesture strokes are displayed as a
  * gesture trail and animated on the screen.
  *
- * @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutStartDelay
- * @attr ref R.styleable#MainKeyboardView_gestureTrailFadeoutDuration
- * @attr ref R.styleable#MainKeyboardView_gestureTrailUpdateInterval
- * @attr ref R.styleable#MainKeyboardView_gestureTrailColor
- * @attr ref R.styleable#MainKeyboardView_gestureTrailWidth
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailFadeoutStartDelay
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailFadeoutDuration
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailUpdateInterval
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailColor
+ * @attr ref android.R.styleable#MainKeyboardView_gestureTrailWidth
  */
 final class GestureTrailDrawingParams {
     private static final int FADEOUT_START_DELAY_FOR_DEBUG = 2000; // millisecond
diff --git a/java/src/com/android/inputmethod/keyboard/internal/SlidingKeyInputDrawingPreview.java b/java/src/com/android/inputmethod/keyboard/internal/SlidingKeyInputDrawingPreview.java
index 73a6f95..6837f0f 100644
--- a/java/src/com/android/inputmethod/keyboard/internal/SlidingKeyInputDrawingPreview.java
+++ b/java/src/com/android/inputmethod/keyboard/internal/SlidingKeyInputDrawingPreview.java
@@ -28,10 +28,10 @@
 /**
  * Draw rubber band preview graphics during sliding key input.
  *
- * @attr ref R.styleable#MainKeyboardView_slidingKeyInputPreviewColor
- * @attr ref R.styleable#MainKeyboardView_slidingKeyInputPreviewWidth
- * @attr ref R.styleable#MainKeyboardView_slidingKeyInputPreviewBodyRatio
- * @attr ref R.styleable#MainKeyboardView_slidingKeyInputPreviewShadowRatio
+ * @attr ref android.R.styleable#MainKeyboardView_slidingKeyInputPreviewColor
+ * @attr ref android.R.styleable#MainKeyboardView_slidingKeyInputPreviewWidth
+ * @attr ref android.R.styleable#MainKeyboardView_slidingKeyInputPreviewBodyRatio
+ * @attr ref android.R.styleable#MainKeyboardView_slidingKeyInputPreviewShadowRatio
  */
 public final class SlidingKeyInputDrawingPreview extends AbstractDrawingPreview {
     private final float mPreviewBodyRadius;