Preliminary work on Material Transitions

-> Early exploration of AllApps Hero transition with
   circular reveal
-> Stripping a bunch of dead code from AppsCustomizeTabHost
-> Moved background scrim to DragLayer
-> Removed "SMALL" state from workspace: replaced with
   NORMAL_HIDDEN and OVERVIEW_HIDDEN. This is mainly to
   reduce the overall usage of the z-space model between
   allapps/widgets and workspace. There are vestigial
   remains of this model, mainly due to the overview
   mode, and a bit for spring-loaded.

Change-Id: If2302a24394f0ec66621f01ffa2fc4934aa10c3f
diff --git a/res/layout/apps_customize_pane.xml b/res/layout/apps_customize_pane.xml
index 19db373..007c536 100644
--- a/res/layout/apps_customize_pane.xml
+++ b/res/layout/apps_customize_pane.xml
@@ -15,75 +15,40 @@
 -->
 <com.android.launcher3.AppsCustomizeTabHost
     xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"
-    android:background="#80FFFFFF">
+    xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3">
+
     <LinearLayout
-        android:id="@+id/apps_customize_content"
-        android:orientation="vertical"
+        android:id="@+id/content"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:visibility="gone">
-        <!-- The layout_width of the tab bar gets overriden to align the content
-             with the text in the tabs in AppsCustomizeTabHost. -->
-        <FrameLayout
-            android:id="@+id/tabs_container"
-            android:layout_width="wrap_content"
-            android:layout_height="@dimen/apps_customize_tab_bar_height"
-            android:layout_marginTop="@dimen/apps_customize_tab_bar_margin_top"
-            android:layout_gravity="center_horizontal"
-            android:visibility="gone">
-            <com.android.launcher3.FocusOnlyTabWidget
-                android:id="@android:id/tabs"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_gravity="center"
-                android:gravity="start"
-                android:background="@drawable/tab_unselected_holo"
-                android:tabStripEnabled="false"
-                android:divider="@null" />
-            <include
-                android:id="@+id/market_button"
-                layout="@layout/market_button"
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:layout_gravity="end" />
-        </FrameLayout>
-        <FrameLayout
-            android:id="@android:id/tabcontent"
+        android:clipChildren="false"
+        android:orientation="vertical">
+
+        <com.android.launcher3.AppsCustomizePagedView
+            android:id="@+id/apps_customize_pane_content"
             android:layout_width="match_parent"
-            android:layout_height="match_parent">
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:orientation="vertical">
-
-                <com.android.launcher3.AppsCustomizePagedView
-                    android:id="@+id/apps_customize_pane_content"
-                    android:layout_width="match_parent"
-                    android:layout_height="0dp"
-                    android:layout_weight="1"
-                    launcher:widgetCountX="@integer/apps_customize_widget_cell_count_x"
-                    launcher:widgetCountY="@integer/apps_customize_widget_cell_count_y"
-                    launcher:clingFocusedX="@integer/apps_customize_cling_focused_x"
-                    launcher:clingFocusedY="@integer/apps_customize_cling_focused_y"
-                    launcher:maxGap="@dimen/workspace_max_gap"
-                    launcher:pageIndicator="@+id/apps_customize_page_indicator" />
-
-                <include
-                    android:id="@+id/apps_customize_page_indicator"
-                    layout="@layout/page_indicator"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center" />
-            </LinearLayout>
-
-            <FrameLayout
-                android:id="@+id/animation_buffer"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:background="#FF000000"
-                android:visibility="gone" />
-        </FrameLayout>
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            launcher:widgetCountX="@integer/apps_customize_widget_cell_count_x"
+            launcher:widgetCountY="@integer/apps_customize_widget_cell_count_y"
+            launcher:clingFocusedX="@integer/apps_customize_cling_focused_x"
+            launcher:clingFocusedY="@integer/apps_customize_cling_focused_y"
+            launcher:maxGap="@dimen/workspace_max_gap"
+            launcher:pageIndicator="@+id/apps_customize_page_indicator" />
+        <include
+            android:id="@+id/apps_customize_page_indicator"
+            layout="@layout/page_indicator"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center" />
     </LinearLayout>
+
+    <include
+        android:id="@+id/market_button"
+        layout="@layout/market_button"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_gravity="end"
+        android:visibility="gone"/>
+
 </com.android.launcher3.AppsCustomizeTabHost>