Make it possible to set the display mode from the WebView API

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 18 matching lines @@
  */
 
 #ifndef WebViewImpl_h
 #define WebViewImpl_h
 
 #include "core/page/EventWithHitTestResults.h"
 #include "platform/geometry/IntPoint.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/heap/Handle.h"
+#include "public/platform/WebDisplayMode.h"
 #include "public/platform/WebFloatSize.h"
 #include "public/platform/WebGestureCurveTarget.h"
 #include "public/platform/WebLayer.h"
 #include "public/platform/WebPoint.h"
 #include "public/platform/WebRect.h"
 #include "public/platform/WebSize.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebVector.h"
 #include "public/web/WebInputEvent.h"
 #include "public/web/WebNavigationPolicy.h"
@@ skipping 147 matching lines @@
     virtual float pageScaleFactor() const override;
     virtual void setDefaultPageScaleLimits(float minScale, float maxScale) override;
     virtual void setInitialPageScaleOverride(float) override;
     virtual void setMainFrameScrollOffset(const WebPoint&) override;
     virtual void setPageScaleFactor(float) override;
     virtual void setPinchViewportOffset(const WebFloatPoint&) override;
     virtual WebFloatPoint pinchViewportOffset() const override;
     virtual void resetScrollAndScaleState() override;
     virtual void setIgnoreViewportTagScaleLimits(bool) override;
     virtual WebSize contentsPreferredMinimumSize() override;
+    virtual void setDisplayMode(WebDisplayMode) override;
 
     virtual float deviceScaleFactor() const override;
     virtual void setDeviceScaleFactor(float) override;
     virtual void setDeviceColorProfile(const WebVector<char>&) override;
     virtual void resetDeviceColorProfile() override;
 
     virtual void enableAutoResizeMode(
         const WebSize& minSize,
         const WebSize& maxSize) override;
     virtual void disableAutoResizeMode() override;
@@ skipping 539 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