Move download messages from Renderer to Frame filter.

third_party/WebKit/public/web/WebLocalFrame.h

Index: third_party/WebKit/public/web/WebLocalFrame.h
diff --git a/third_party/WebKit/public/web/WebLocalFrame.h b/third_party/WebKit/public/web/WebLocalFrame.h
index 2dac83d7074bcb0226a682b3282eefc7e058e40c..981d53b8ccccb59098393a73f53e47a17c1b73b9 100644
--- a/third_party/WebKit/public/web/WebLocalFrame.h
+++ b/third_party/WebKit/public/web/WebLocalFrame.h
@@ -335,6 +335,14 @@ public:
     // nullptr otherwise.
     virtual WebWidget* frameWidget() const = 0;
 
+    // Copy to the clipboard the image located at a particular point in visual
+    // viewport coordinates.
+    virtual void copyImageAt(const WebPoint&) = 0;
+
+    // Save as the image located at a particular point in visual viewport
+    // coordinates.
+    virtual void saveImageAt(const WebPoint&) = 0;
+
 protected:
     explicit WebLocalFrame(WebTreeScopeType scope) : WebFrame(scope) { }