Implement unregisterProtocolHandler() for content layer

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 2fb4589342872448feed75d8656972f4ba0fac1d..9603dcf2ed714fe7091fa274b39a03ac90205ad6 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -3667,6 +3667,21 @@ void RenderViewImpl::registerProtocolHandler(const WebString& scheme,
                                                user_gesture));
 }
 
+void RenderViewImpl::unregisterProtocolHandler(const WebString& scheme,
+                                               const WebURL& base_url,
+                                               const WebURL& url) {
+  bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
+  GURL base(base_url);
+  GURL absolute_url = base.Resolve(base::UTF16ToUTF8(url.string()));
+  if (base.GetOrigin() != absolute_url.GetOrigin()) {

[jochen (gone - plz use gerrit), 2014/07/09 09:12:56]

no { }

[gyuyoung-inactive, 2014/07/09 09:32:16]

Done.

+    return;
+  }
+  Send(new ViewHostMsg_UnregisterProtocolHandler(routing_id_,
+                                                 base::UTF16ToUTF8(scheme),
+                                                 absolute_url,
+                                                 user_gesture));
+}
+
 blink::WebPageVisibilityState RenderViewImpl::visibilityState() const {
   blink::WebPageVisibilityState current_state = is_hidden() ?
       blink::WebPageVisibilityStateHidden :