Cleanup the remaining references to source_view_id

content/renderer/render_frame_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 1631 matching lines @@
   render_view_->webview()->settings()->setTextTrackTextShadow(
       WebString::fromUTF8(params.text_track_text_shadow));
   render_view_->webview()->settings()->setTextTrackTextSize(
       WebString::fromUTF8(params.text_track_text_size));
 }
 
 void RenderFrameImpl::OnPostMessageEvent(
     const FrameMsg_PostMessage_Params& params) {
   // Find the source frame if it exists.
   WebFrame* source_frame = NULL;
-  if (params.source_view_routing_id != MSG_ROUTING_NONE) {
-    // Support a legacy postMessage path for specifying a source RenderView;
-    // this is currently used when sending messages to Android WebView.
-    // TODO(alexmos): This path can be removed once crbug.com/473258 is fixed.
-    RenderViewImpl* source_view =
-        RenderViewImpl::FromRoutingID(params.source_view_routing_id);
-    if (source_view)
-      source_frame = source_view->webview()->mainFrame();
-  } else if (params.source_routing_id != MSG_ROUTING_NONE) {
+  if (params.source_routing_id != MSG_ROUTING_NONE) {
     RenderFrameProxy* source_proxy =
         RenderFrameProxy::FromRoutingID(params.source_routing_id);
     if (source_proxy) {
       // Currently, navigating a top-level frame cross-process does not swap
       // the WebLocalFrame for a WebRemoteFrame in the frame tree, and the
       // WebRemoteFrame will not have an associated blink::Frame. If this is
       // the case for |source_proxy|, use the corresponding (swapped-out)
       // WebLocalFrame instead, so that event.source for this message can be
       // set and used properly.
       if (source_proxy->IsMainFrameDetachedFromTree())
@@ skipping 3402 matching lines @@
 void RenderFrameImpl::RegisterMojoServices() {
   // Only main frame have ImageDownloader service.
   if (!frame_->parent()) {
     GetServiceRegistry()->AddService<image_downloader::ImageDownloader>(
         base::Bind(&ImageDownloaderImpl::CreateMojoService,
                    base::Unretained(this)));
   }
 }
 
 }  // namespace content