Allow out-of-process iframes to paint in --site-per-process.

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 1047 matching lines @@
     // Now that we're swapped out and filtering IPC messages, stop loading to
     // ensure that no other in-progress navigation continues.  We do this here
     // to avoid sending a DidStopLoading message to the browser process.
     // TODO(creis): Should we be stopping all frames here and using
     // StopAltErrorPageFetcher with RenderView::OnStop, or just stopping this
     // frame?
     OnStop();
 
     // Let subframes know that the frame is now rendered remotely, for the
     // purposes of compositing and input events.
-    if (!is_main_frame)
+    if (!is_main_frame) {
+      // TODO(creis): Remove setIsRemote and send initializeChildFrame from the
+      // RenderFrameProxy, since the RenderFrameHost may be deleted first.  In
+      // the meantime, temporarily set this frame's proxy so that the message
+      // is sent via RenderFrameProxy.
+      // See http://crbug.com/416102.
+      DCHECK(!render_frame_proxy_);
+      set_render_frame_proxy(proxy);
       frame_->setIsRemote(true);
+      set_render_frame_proxy(NULL);
+    }
 
     // Replace the page with a blank dummy URL. The unload handler will not be
     // run a second time, thanks to a check in FrameLoader::stopLoading.
     // TODO(creis): Need to add a better way to do this that avoids running the
     // beforeunload handler. For now, we just run it a second time silently.
     if (!is_site_per_process || is_main_frame)
       render_view_->NavigateToSwappedOutURL(frame_);
 
     // Let WebKit know that this view is hidden so it can drop resources and
     // stop compositing.
@@ skipping 2095 matching lines @@
       THREE_D_API_TYPE_WEBGL,
       arb_robustness_status_code));
 }
 
 void RenderFrameImpl::forwardInputEvent(const blink::WebInputEvent* event) {
   Send(new FrameHostMsg_ForwardInputEvent(routing_id_, event));
 }
 
 void RenderFrameImpl::initializeChildFrame(const blink::WebRect& frame_rect,
                                            float scale_factor) {
-  Send(new FrameHostMsg_InitializeChildFrame(
+  render_frame_proxy_->Send(new FrameHostMsg_InitializeChildFrame(
       routing_id_, frame_rect, scale_factor));
 }
 
 blink::WebScreenOrientationClient*
     RenderFrameImpl::webScreenOrientationClient() {
   if (!screen_orientation_dispatcher_)
     screen_orientation_dispatcher_ = new ScreenOrientationDispatcher(this);
   return screen_orientation_dispatcher_;
 }
 
@@ skipping 718 matching lines @@
 
 #if defined(ENABLE_BROWSER_CDMS)
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 #endif  // defined(ENABLE_BROWSER_CDMS)
 
 }  // namespace content