[Experimental] Supporting OOPIF printing

content/browser/frame_host/render_frame_proxy_host.cc

 // Copyright 2014 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_proxy_host.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/common/frame_messages.h"
 #include "content/common/frame_owner_properties.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/notification_types.h"
+#include "content/public/browser/print_subframe_details.h"
 #include "ipc/ipc_message.h"
 
 namespace content {
 
 namespace {
 
 // The (process id, routing id) pair that identifies one RenderFrameProxy.
 typedef std::pair<int32_t, int32_t> RenderFrameProxyHostID;
 typedef base::hash_map<RenderFrameProxyHostID, RenderFrameProxyHost*>
     RoutingIDFrameProxyMap;
@@ skipping 98 matching lines @@
     return true;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(RenderFrameProxyHost, msg)
     IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
     IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL)
     IPC_MESSAGE_HANDLER(FrameHostMsg_RouteMessageEvent, OnRouteMessageEvent)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeOpener, OnDidChangeOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_AdvanceFocus, OnAdvanceFocus)
     IPC_MESSAGE_HANDLER(FrameHostMsg_FrameFocused, OnFrameFocused)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_PrintRemoteFrame, OnPrintRemoteFrame)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 bool RenderFrameProxyHost::InitRenderFrameProxy() {
   DCHECK(!render_frame_proxy_created_);
 
   // It is possible to reach this when the process is dead (in particular, when
   // creating proxies from CreateProxiesForChildFrame).  In that case, don't
@@ skipping 213 matching lines @@
           : nullptr;
 
   target_rfh->AdvanceFocus(type, source_proxy);
 }
 
 void RenderFrameProxyHost::OnFrameFocused() {
   frame_tree_node_->current_frame_host()->delegate()->SetFocusedFrame(
       frame_tree_node_, GetSiteInstance());
 }
 
+void RenderFrameProxyHost::OnPrintRemoteFrame(const gfx::Rect& rect,
+                                              int page_num) {
+  RenderFrameHostImpl* target_rfh =
+      frame_tree_node_->render_manager()->current_frame_host();
+
+  PrintSubframeDetails details(page_num, GetRoutingID());
+  NotificationService::current()->Notify(
+      NOTIFICATION_PRINT_SUBFRAME_BEGIN,
+      content::Source<RenderFrameProxyHost>(this),
+      content::Details<PrintSubframeDetails>(&details));
+  target_rfh->Send(
+      new FrameMsg_PrintFrame(target_rfh->GetRoutingID(), rect, page_num));
+}
+
 }  // namespace content