Move download messages from Renderer to Frame filter.

third_party/WebKit/Source/web/WebLocalFrameImpl.h

Index: third_party/WebKit/Source/web/WebLocalFrameImpl.h
diff --git a/third_party/WebKit/Source/web/WebLocalFrameImpl.h b/third_party/WebKit/Source/web/WebLocalFrameImpl.h
index f3becd7d61894453c9634a5c2dc4c3a94a8b8792..53f73f37dc2598f6628efac3e5cafd95685b5c6a 100644
--- a/third_party/WebKit/Source/web/WebLocalFrameImpl.h
+++ b/third_party/WebKit/Source/web/WebLocalFrameImpl.h
@@ -194,6 +194,8 @@ public:
     WebRect selectionBoundsRect() const override;
 
     bool selectionStartHasSpellingMarkerFor(int from, int length) const override;
+    void copyImageAt(const WebPoint&) override;
+    void saveImageAt(const WebPoint&) override;
     WebString layerTreeAsText(bool showDebugInfo = false) const override;
 
     WebFrameImplBase* toImplBase() override { return this; }
@@ -349,6 +351,8 @@ private:
 
     void loadJavaScriptURL(const KURL&);
 
+    HitTestResult hitTestResultForVisualViewportPos(const IntPoint&);
+
     WebPlugin* focusedPluginIfInputMethodSupported();
     ScrollableArea* layoutViewportScrollableArea() const;