Fix page zoom to be frame-centric for out-of-process frames.

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 528 matching lines @@
 
     void scrollAndRescaleViewports(float scaleFactor, const IntPoint& mainFrameOrigin, const FloatPoint& visualViewportOrigin);
 
     float maximumLegiblePageScale() const;
     void refreshPageScaleFactorAfterLayout();
     void resumeTreeViewCommitsIfRenderingReady();
     IntSize contentsSize() const;
 
     void performResize();
     void resizeViewWhileAnchored(FrameView*);
+    double setZoomLevelForFrame(WebLocalFrame*, double zoomLevel) override;
 
     friend class WebView;  // So WebView::Create can call our constructor
     friend class WTF::RefCounted<WebViewImpl>;
     friend void setCurrentInputEventForTest(const WebInputEvent*);
 
     enum DragAction {
       DragEnter,
       DragOver
     };
 
@@ skipping 55 matching lines @@
     WebInputEventResult handleSyntheticWheelFromTouchpadPinchEvent(const WebGestureEvent&);
 
     WebPlugin* focusedPluginIfInputMethodSupported(LocalFrame*);
 
     void enablePopupMouseWheelEventListener();
     void disablePopupMouseWheelEventListener();
 
     void cancelPagePopup();
     void updatePageOverlays();
 
+    double setZoomLevelForFrame(LocalFrame*, double zoomLevel);
     float deviceScaleFactor() const;
 
     WebViewClient* m_client; // Can be 0 (e.g. unittests, shared workers, etc.)
     WebSpellCheckClient* m_spellCheckClient;
 
     OwnPtrWillBePersistent<ChromeClientImpl> m_chromeClientImpl;
     ContextMenuClientImpl m_contextMenuClientImpl;
     DragClientImpl m_dragClientImpl;
     EditorClientImpl m_editorClientImpl;
     SpellCheckerClientImpl m_spellCheckerClientImpl;
@@ skipping 135 matching lines @@
 };
 
 DEFINE_TYPE_CASTS(WebViewImpl, WebWidget, widget, widget->isWebView(), widget.isWebView());
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif