Simplify onComputeInsets of LatinIME

This CL expands SoftInputWindow to the entire screen. Thus a key
review backing view is eliminated and onComputeInsets() gets
simplified too.

Bug: 17212702
Bug: 10841052
Bug: 10541453
Change-Id: I2d859f4e4698c64cabe399000821f13bab729996
diff --git a/java/res/layout/emoji_palettes_view.xml b/java/res/layout/emoji_palettes_view.xml
index a6ea38b..26cc042 100644
--- a/java/res/layout/emoji_palettes_view.xml
+++ b/java/res/layout/emoji_palettes_view.xml
@@ -20,10 +20,10 @@
 
 <com.android.inputmethod.keyboard.emoji.EmojiPalettesView
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/emoji_keyboard_view"
-    android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_gravity="bottom"
+    android:orientation="vertical"
     style="?attr/emojiPalettesViewStyle"
 >
     <LinearLayout
diff --git a/java/res/layout/input_view.xml b/java/res/layout/input_view.xml
index a4bcdcc..46551f6 100644
--- a/java/res/layout/input_view.xml
+++ b/java/res/layout/input_view.xml
@@ -21,38 +21,11 @@
 <com.android.inputmethod.latin.InputView
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:gravity="bottom|center_horizontal"
-    android:orientation="vertical" >
-    <!-- The height of key_preview_backing view will automatically be determined by code. -->
-    <FrameLayout
-        android:id="@+id/key_preview_backing"
-        android:layout_width="match_parent"
-        android:layout_height="0dp" />
-    <LinearLayout
-        android:id="@+id/main_keyboard_frame"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="vertical" >
-
-        <!-- To ensure that key preview popup is correctly placed when the current system locale is
-             one of RTL locales, layoutDirection="ltr" is needed in the SDK version 17+. -->
-        <com.android.inputmethod.latin.suggestions.SuggestionStripView
-            android:id="@+id/suggestion_strip_view"
-            android:layoutDirection="ltr"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/config_suggestions_strip_height"
-            android:gravity="center_vertical"
-            style="?attr/suggestionStripViewStyle" />
-
-        <!-- To ensure that key preview popup is correctly placed when the current system locale is
-             one of RTL locales, layoutDirection="ltr" is needed in the SDK version 17+. -->
-        <com.android.inputmethod.keyboard.MainKeyboardView
-            android:id="@+id/keyboard_view"
-            android:layoutDirection="ltr"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-    </LinearLayout>
+    android:layout_height="wrap_content">
     <include
+        android:id="@+id/main_keyboard_frame"
+        layout="@layout/main_keyboard_frame" />
+    <include
+        android:id="@+id/emoji_palettes_view"
         layout="@layout/emoji_palettes_view" />
 </com.android.inputmethod.latin.InputView>
diff --git a/java/res/layout/main_keyboard_frame.xml b/java/res/layout/main_keyboard_frame.xml
new file mode 100644
index 0000000..ebf7466
--- /dev/null
+++ b/java/res/layout/main_keyboard_frame.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2014, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_gravity="bottom"
+    android:orientation="vertical" >
+
+    <!-- To ensure that key preview popup is correctly placed when the current system locale is
+         one of RTL locales, layoutDirection="ltr" is needed in the SDK version 17+. -->
+    <com.android.inputmethod.latin.suggestions.SuggestionStripView
+        android:id="@+id/suggestion_strip_view"
+        android:layoutDirection="ltr"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/config_suggestions_strip_height"
+        android:gravity="center_vertical"
+        style="?attr/suggestionStripViewStyle" />
+
+    <!-- To ensure that key preview popup is correctly placed when the current system locale is
+         one of RTL locales, layoutDirection="ltr" is needed in the SDK version 17+. -->
+    <com.android.inputmethod.keyboard.MainKeyboardView
+        android:id="@+id/keyboard_view"
+        android:layoutDirection="ltr"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+</LinearLayout>