Make PageScaleFactor work for oopif subframes.

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 <utility>
 #include <vector>
@@ skipping 4497 matching lines @@
 }
 
 void RenderFrameImpl::didChangeScrollOffset(blink::WebLocalFrame* frame) {
   DCHECK_EQ(frame_, frame);
   render_view_->StartNavStateSyncTimerIfNecessary(this);
 
   for (auto& observer : observers_)
     observer.DidChangeScrollOffset();
 }
 
+void RenderFrameImpl::didRestorePageScaleFactorOnLoad(float page_scale) {
+  // Notify the web contents so it can update cross-process frames.
+  Send(new FrameHostMsg_RestorePageScaleFactorOnLoad(routing_id_, page_scale));
+}
+
 void RenderFrameImpl::willInsertBody(blink::WebLocalFrame* frame) {
   DCHECK(!frame_ || frame_ == frame);
   if (!frame->parent()) {
     render_view_->Send(new ViewHostMsg_WillInsertBody(
         render_view_->GetRoutingID()));
   }
 }
 
 void RenderFrameImpl::reportFindInPageMatchCount(int request_id,
                                                  int count,
@@ skipping 2351 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content