Make printing work better with OOPIF.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 462be0921a400456cebf0b598c7f44fe1a9b6ac2..c769b8cdeac05eb35edfa22f13259a1f9c157e57 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -229,7 +229,6 @@
 #include "content/renderer/media/android/stream_texture_wrapper_impl.h"
 #include "content/renderer/media/android/webmediaplayer_android.h"
 #include "media/base/android/media_codec_util.h"
-#include "media/mojo/clients/mojo_renderer_factory.h"  // nogncheck
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 #endif
 
@@ -1474,8 +1473,14 @@ void RenderFrameImpl::OnImeFinishComposingText(bool keep_selection) {
 MediaStreamDispatcher* RenderFrameImpl::GetMediaStreamDispatcher() {
   if (!web_user_media_client_)
     InitializeUserMediaClient();
-  return web_user_media_client_ ?
-      web_user_media_client_->media_stream_dispatcher() : NULL;
+  return web_user_media_client_
+             ? web_user_media_client_->media_stream_dispatcher()
+             : nullptr;
+}
+
+void RenderFrameImpl::ScriptedPrint(bool user_initiated) {
+  for (auto& observer : observers_)
+    observer.ScriptedPrint(user_initiated);
 }
 
 bool RenderFrameImpl::Send(IPC::Message* message) {
@@ -1529,7 +1534,7 @@ bool RenderFrameImpl::OnMessageReceived(const IPC::Message& msg) {
                         OnCustomContextMenuAction)
 #if defined(ENABLE_PLUGINS)
     IPC_MESSAGE_HANDLER(FrameMsg_SetPepperVolume, OnSetPepperVolume)
-#endif  //defined(ENABLE_PLUGINS)
+#endif
     IPC_MESSAGE_HANDLER(InputMsg_Undo, OnUndo)
     IPC_MESSAGE_HANDLER(InputMsg_Redo, OnRedo)
     IPC_MESSAGE_HANDLER(InputMsg_Cut, OnCut)
@@ -2566,11 +2571,8 @@ void RenderFrameImpl::DetachGuest(int element_instance_id) {
 void RenderFrameImpl::SetSelectedText(const base::string16& selection_text,
                                       size_t offset,
                                       const gfx::Range& range) {
-  // Use the routing id of Render Widget Host.
-  Send(new ViewHostMsg_SelectionChanged(GetRenderWidget()->routing_id(),
-                                        selection_text,
-                                        static_cast<uint32_t>(offset),
-                                        range));
+  Send(new FrameHostMsg_SelectionChanged(routing_id_, selection_text,
+                                         static_cast<uint32_t>(offset), range));
 }
 
 void RenderFrameImpl::EnsureMojoBuiltinsAreAvailable(
@@ -4932,6 +4934,9 @@ void RenderFrameImpl::didStartLoading(bool to_different_document) {
                "id", routing_id_);
   render_view_->FrameDidStartLoading(frame_);
 
+  for (auto& observer : observers_)
+    observer.DidStartLoading();
+
   // PlzNavigate: the browser is responsible for knowing the start of all
   // non-synchronous navigations.
   if (!IsBrowserSideNavigationEnabled() || !to_different_document)
@@ -4948,6 +4953,8 @@ void RenderFrameImpl::didStopLoading() {
   history_subframe_unique_names_.clear();
 
   render_view_->FrameDidStopLoading(frame_);
+  for (auto& observer : observers_)
+    observer.DidStopLoading();
   Send(new FrameHostMsg_DidStopLoading(routing_id_));
 }