Introduce the bottom sheet class for Chrome Home

chrome/android/java/res/layout/bottom_control_container.xml

Index: chrome/android/java/res/layout/bottom_control_container.xml
diff --git a/chrome/android/java/res/layout/bottom_control_container.xml b/chrome/android/java/res/layout/bottom_control_container.xml
index e83d9dcbb4aed86b78f5a7ea32006e1ab1a0b848..1153e0af1c9f78b16aaaf1210445bef0d0bcb24b 100644
--- a/chrome/android/java/res/layout/bottom_control_container.xml
+++ b/chrome/android/java/res/layout/bottom_control_container.xml
@@ -2,37 +2,51 @@
 <!-- Copyright 2016 The Chromium Authors. All rights reserved.
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file. -->
-<org.chromium.chrome.browser.toolbar.ToolbarControlContainer xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/control_container"
+
+<org.chromium.chrome.browser.widget.BottomSheet
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/bottom_sheet"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_gravity="bottom"
-    android:minHeight="@dimen/control_container_height" >
-    <view
-        class="org.chromium.chrome.browser.toolbar.ToolbarControlContainer$ToolbarViewResourceFrameLayout"
-        android:id="@+id/toolbar_container"
+    android:layout_height="wrap_content" >
+
+    <org.chromium.chrome.browser.toolbar.ToolbarControlContainer
+        android:id="@+id/control_container"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-        <ImageView
-            android:id="@+id/toolbar_shadow"
+        android:layout_height="wrap_content"
+        android:minHeight="@dimen/control_container_height" >
+        <view
+            class="org.chromium.chrome.browser.toolbar.ToolbarControlContainer$ToolbarViewResourceFrameLayout"
+            android:id="@+id/toolbar_container"
             android:layout_width="match_parent"
-            android:layout_height="@dimen/toolbar_shadow_height"
-            android:src="@drawable/toolbar_shadow"
-            android:scaleType="fitXY"
-            android:scaleY="-1"
-            android:contentDescription="@null" />
-        <ViewStub
-            android:id="@+id/toolbar_stub"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/toolbar_height_no_shadow"
-            android:layout_marginTop="@dimen/toolbar_shadow_height" />
-        <ViewStub
-            android:id="@+id/find_toolbar_stub"
-            android:inflatedId="@+id/find_toolbar"
-            android:layout_marginTop="@dimen/toolbar_shadow_height"
-            android:layout_width="match_parent"
-            android:layout_height="@dimen/toolbar_height_no_shadow"
-            android:layout="@layout/find_toolbar"
-            android:visibility="gone" />
-    </view>
-</org.chromium.chrome.browser.toolbar.ToolbarControlContainer>
+            android:layout_height="wrap_content">
+            <ImageView
+                android:id="@+id/toolbar_shadow"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/toolbar_shadow_height"
+                android:src="@drawable/toolbar_shadow"
+                android:scaleType="fitXY"
+                android:scaleY="-1"
+                android:contentDescription="@null" />
+            <ViewStub
+                android:id="@+id/toolbar_stub"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/toolbar_height_no_shadow"
+                android:layout_marginTop="@dimen/toolbar_shadow_height" />
+            <ViewStub
+                android:id="@+id/find_toolbar_stub"
+                android:inflatedId="@+id/find_toolbar"
+                android:layout_marginTop="@dimen/toolbar_shadow_height"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/toolbar_height_no_shadow"
+                android:layout="@layout/find_toolbar"
+                android:visibility="gone" />
+        </view>
+    </org.chromium.chrome.browser.toolbar.ToolbarControlContainer>
+
+    <View
+        android:id="@+id/bottom_sheet_content"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@android:color/white" />
+
+</org.chromium.chrome.browser.widget.BottomSheet>