Adds scroll position/scale emulation to DevTools.

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 51 matching lines @@
 #include "web/StorageClientImpl.h"
 #include "web/WebExport.h"
 #include "wtf/Compiler.h"
 #include "wtf/HashSet.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 #include <memory>
 
 namespace blink {
 
+class CompositorMutatorImpl;
 class DataObject;
 class DevToolsEmulator;
 class Frame;
 class FullscreenController;
 class InspectorOverlay;
 class LinkHighlightImpl;
 class PageOverlay;
 class PageScaleConstraintsSet;
 class PaintLayerCompositor;
 class TopControls;
 class UserGestureToken;
 class WebActiveGestureAnimation;
 class WebDevToolsAgentImpl;
 class WebElement;
 class WebLayerTreeView;
 class WebLocalFrame;
 class WebLocalFrameImpl;
 class WebImage;
-class CompositorMutatorImpl;
 class WebPagePopupImpl;
 class WebPlugin;
 class WebRemoteFrame;
 class WebSelection;
 class WebSettingsImpl;
 class WebViewScheduler;
 
 class WEB_EXPORT WebViewImpl final : WTF_NON_EXPORTED_BASE(public WebView)
     , public RefCounted<WebViewImpl>
     , WTF_NON_EXPORTED_BASE(public WebGestureCurveTarget)
@@ skipping 359 matching lines @@
 
     void enterFullScreenForElement(Element*);
     void exitFullScreenForElement(Element*);
 
     void clearCompositedSelection();
     void updateCompositedSelection(const WebSelection&);
 
     // Exposed for the purpose of overriding device metrics.
     void sendResizeEventAndRepaint();
 
+    // Override the page scale and scroll positions of main frame and visual viewport.
+    void setScrollAndScaleOverride(const IntPoint& framePosition, const DoublePoint& visualViewportPosition, float pageScale);
+    void clearScrollAndScaleOverride();
+
     // Exposed for testing purposes.
     bool hasHorizontalScrollbar();
     bool hasVerticalScrollbar();
 
     // Exposed for tests.
     unsigned numLinkHighlights() { return m_linkHighlights.size(); }
     LinkHighlightImpl* getLinkHighlight(int i) { return m_linkHighlights[i].get(); }
 
     WebSettingsImpl* settingsImpl();
 
@@ skipping 295 matching lines @@
     bool m_overrideCompositorVisibility;
 };
 
 // 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