Expand bottom sheet when URL bar is focused

chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
@@ skipping 217 matching lines @@
     private CompositorViewHolder mCompositorViewHolder;
     private InsetObserverView mInsetObserverView;
     private ContextualSearchManager mContextualSearchManager;
     private ReaderModeManager mReaderModeManager;
     private SnackbarManager mSnackbarManager;
     private DataUseSnackbarController mDataUseSnackbarController;
     private DataReductionPromoSnackbarController mDataReductionPromoSnackbarController;
     private AppMenuPropertiesDelegate mAppMenuPropertiesDelegate;
     private AppMenuHandler mAppMenuHandler;
     private ToolbarManager mToolbarManager;
+    private BottomSheet mBottomSheet;
 
     // Time in ms that it took took us to inflate the initial layout
     private long mInflateInitialLayoutDurationMs;
 
     private int mScreenWidthDp;
     private Runnable mRecordMultiWindowModeScreenWidthRunnable;
 
     private AssistStatusHandler mAssistStatusHandler;
 
     // A set of views obscuring all tabs. When this set is nonempty,
@@ skipping 134 matching lines @@
                 }
 
                 // It cannot be assumed that the result of toolbarContainerStub.inflate() will be
                 // the control container since it may be wrapped in another view.
                 ControlContainer controlContainer =
                         (ControlContainer) findViewById(R.id.control_container);
 
                 // Get a handle to the bottom sheet if using the bottom control container.
                 if (controlContainerLayoutId == R.layout.bottom_control_container) {
                     View coordinator = findViewById(R.id.coordinator);
-                    BottomSheet bottomSheet = (BottomSheet) findViewById(R.id.bottom_sheet);
-                    bottomSheet.init(coordinator, controlContainer.getView());
+                    mBottomSheet = (BottomSheet) findViewById(R.id.bottom_sheet);
+                    mBottomSheet.init(coordinator, controlContainer.getView());
                 }
 
                 // Inflate the correct toolbar layout for the device.
                 int toolbarLayoutId = getToolbarLayoutId();
                 if (toolbarLayoutId != NO_TOOLBAR_LAYOUT && controlContainer != null) {
                     controlContainer.initWithToolbar(toolbarLayoutId);
                 }
             } finally {
                 StrictMode.setThreadPolicy(oldPolicy);
             }
@@ skipping 176 matching lines @@
     }
 
     /**
      * @return The resource id for the menu to use in {@link AppMenu}. Default is R.menu.main_menu.
      */
     protected int getAppMenuLayoutId() {
         return R.menu.main_menu;
     }
 
     /**
+     * Get the Chrome Home bottom sheet if it exists.
+     * @return The bottom sheet or null.
+     */
+    public BottomSheet getBottomSheet() {
+        return mBottomSheet;
+    }
+
+    /**
      * @return {@link AppMenuPropertiesDelegate} instance that the {@link AppMenuHandler}
      *         should be using in this activity.
      */
     protected AppMenuPropertiesDelegate createAppMenuPropertiesDelegate() {
         return new AppMenuPropertiesDelegate(this);
     }
 
     /**
      * @return The assist handler for this activity.
      */
@@ skipping 1355 matching lines @@
                 "Android.MultiWindowMode.IsTabletScreenWidthBelow600",
                 mScreenWidthDp < DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP);
 
         if (mScreenWidthDp < DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP) {
             RecordHistogram.recordLinearCountHistogram(
                     "Android.MultiWindowMode.TabletScreenWidth", mScreenWidthDp, 1,
                     DeviceFormFactor.MINIMUM_TABLET_WIDTH_DP, 50);
         }
     }
 }