Resize only the virtual viewport when the OSK triggers a resize.

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

 // Copyright 2012 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.content.browser;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
@@ skipping 446 matching lines @@
     private PastePopupMenu mPastePopupMenu;
     private boolean mWasPastePopupShowingOnInsertionDragStart;
 
     // Size of the viewport in physical pixels as set from onSizeChanged.
     private int mViewportWidthPix;
     private int mViewportHeightPix;
     private int mPhysicalBackingWidthPix;
     private int mPhysicalBackingHeightPix;
     private int mTopControlsHeightPix;
     private boolean mTopControlsShrinkBlinkSize;
+    private Rect mWindowInsets;

[aelias_OOO_until_Jul13, 2016/02/24 02:43:59]

As I mentioned in #31, I'd like this to be stored in InsetConsumerView instead.

[ymalik, 2016/03/03 02:10:18]

Done.

 
     // Cached copy of all positions and scales as reported by the renderer.
     private final RenderCoordinates mRenderCoordinates;
 
     // Provides smooth gamepad joystick-driven scrolling.
     private final JoystickScrollProvider mJoystickScrollProvider;
 
     private boolean mIsMobileOptimizedHint;
 
     // Tracks whether a selection is currently active.  When applied to selected text, indicates
@@ skipping 117 matching lines @@
             deviceScaleFactor = Float.valueOf(forceScaleFactor);
         }
         mRenderCoordinates.setDeviceScaleFactor(deviceScaleFactor);
         mAccessibilityManager = (AccessibilityManager)
                 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
         mSystemCaptioningBridge = CaptioningBridgeFactory.getSystemCaptioningBridge(mContext);
         mGestureStateListeners = new ObserverList<GestureStateListener>();
         mGestureStateListenersIterator = mGestureStateListeners.rewindableIterator();
 
         mContainerViewObservers = new ObserverList<ContainerViewObserver>();
+
+        mWindowInsets = new Rect();
     }
 
     /**
      * @return The context used for creating this ContentViewCore.
      */
     @CalledByNative
     public Context getContext() {
         return mContext;
     }
 
     /**
      * @return The ViewGroup that all view actions of this ContentViewCore should interact with.
      */
     public ViewGroup getContainerView() {
         return mContainerView;
     }
 
     /**
+     * @return The system window insets (from OSK, status bar, etc).
+     */
+    private Rect getWindowInsets() {
+        return mWindowInsets != null ? mWindowInsets : new Rect();
+    }
+
+    /**
+     * Set the window insets Rect to the specified values.
+     *
+     * @param left The left window inset
+     * @param top The top window inset.
+     * @param right The right window inset.
+     * @param bottom The bottom window inset.
+     */
+    public void setWindowInsets(int left, int top, int right, int bottom) {
+        mWindowInsets.set(left, top, right, bottom);
+    }
+
+    /**
      * @return The WebContents currently being rendered.
      */
     public WebContents getWebContents() {
         return mWebContents;
     }
 
     /**
      * @return The WindowAndroid associated with this ContentViewCore.
      */
     public WindowAndroid getWindowAndroid() {
@@ skipping 378 matching lines @@
 
     /**
      * @return Viewport height in physical pixels as set from onSizeChanged.
      */
     @CalledByNative
     public int getViewportHeightPix() {
         return mViewportHeightPix;
     }
 
     /**
+     * @return Viewport height when the OSK is hidden in physical pixels as set from onSizeChanged.
+     */
+    @CalledByNative
+    public int getViewportHeightWithOSKHiddenPix() {
+        return mViewportHeightPix + getWindowInsets().bottom;
+    }
+
+    /**
      * @return Width of underlying physical surface.
      */
     @CalledByNative
     private int getPhysicalBackingWidthPix() {
         return mPhysicalBackingWidthPix;
     }
 
     /**
      * @return Height of underlying physical surface.
      */
@@ skipping 2266 matching lines @@
     private native void nativeSetTextTrackSettings(long nativeContentViewCoreImpl,
             boolean textTracksEnabled, String textTrackBackgroundColor, String textTrackFontFamily,
             String textTrackFontStyle, String textTrackFontVariant, String textTrackTextColor,
             String textTrackTextShadow, String textTrackTextSize);
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
 
     private native void nativeSetBackgroundOpaque(long nativeContentViewCoreImpl, boolean opaque);
 }