Make PageScaleFactor work for oopif subframes.

content/browser/frame_host/render_frame_host_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/browser/frame_host/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 748 matching lines @@
                         OnSerializeAsMHTMLResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SelectionChanged, OnSelectionChanged)
     IPC_MESSAGE_HANDLER(FrameHostMsg_FocusedNodeChanged, OnFocusedNodeChanged)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SetHasReceivedUserGesture,
                         OnSetHasReceivedUserGesture)
 #if defined(USE_EXTERNAL_POPUP_MENU)
     IPC_MESSAGE_HANDLER(FrameHostMsg_ShowPopup, OnShowPopup)
     IPC_MESSAGE_HANDLER(FrameHostMsg_HidePopup, OnHidePopup)
 #endif
     IPC_MESSAGE_HANDLER(FrameHostMsg_ShowCreatedWindow, OnShowCreatedWindow)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_RestorePageScaleFactorOnLoad,
+                        OnSetPageScaleFactorForSubframes)
   IPC_END_MESSAGE_MAP()
 
   // No further actions here, since we may have been deleted.
   return handled;
 }
 
 void RenderFrameHostImpl::OnAssociatedInterfaceRequest(
     const std::string& interface_name,
     mojo::ScopedInterfaceEndpointHandle handle) {
   delegate_->OnAssociatedInterfaceRequest(
@@ skipping 1453 matching lines @@
 #endif
 
 void RenderFrameHostImpl::OnShowCreatedWindow(int pending_widget_routing_id,
                                               WindowOpenDisposition disposition,
                                               const gfx::Rect& initial_rect,
                                               bool user_gesture) {
   delegate_->ShowCreatedWindow(GetProcess()->GetID(), pending_widget_routing_id,
                                disposition, initial_rect, user_gesture);
 }
 
+void RenderFrameHostImpl::OnSetPageScaleFactorForSubframes(
+    double page_scale_factor) {
+  // Only the main frame should be receiving this message.
+  if (!frame_tree_node_->IsMainFrame()) {
+    NOTREACHED();
+    return;
+  }
+
+  delegate_->SetPageScaleFactorForSubframes(page_scale_factor);
+}
+
 void RenderFrameHostImpl::RegisterMojoInterfaces() {
   device::GeolocationServiceContext* geolocation_service_context =
       delegate_ ? delegate_->GetGeolocationServiceContext() : NULL;
   if (geolocation_service_context) {
     // TODO(creis): Bind process ID here so that GeolocationServiceImpl
     // can perform permissions checks once site isolation is complete.
     // crbug.com/426384
     // NOTE: At shutdown, there is no guaranteed ordering between destruction of
     // this object and destruction of any GeolocationServicesImpls created via
     // the below service registry, the reason being that the destruction of the
@@ skipping 1154 matching lines @@
   // There is no pending NavigationEntry in these cases, so pass 0 as the
   // pending_nav_entry_id. If the previous handle was a prematurely aborted
   // navigation loaded via LoadDataWithBaseURL, propagate the entry id.
   return NavigationHandleImpl::Create(
       params.url, frame_tree_node_, is_renderer_initiated,
       params.was_within_same_page, base::TimeTicks::Now(),
       entry_id_for_data_nav, false);  // started_from_context_menu
 }
 
 }  // namespace content