Browser Plugin: Add HTML5-like postMessage support

content/renderer/browser_plugin/browser_plugin.cc

Index: content/renderer/browser_plugin/browser_plugin.cc
diff --git a/content/renderer/browser_plugin/browser_plugin.cc b/content/renderer/browser_plugin/browser_plugin.cc
index 9e4b961fab575f9c315e6383da1c0533ac49a027..cb532236035ae2e576f38af37311a136c3e7babd 100644
--- a/content/renderer/browser_plugin/browser_plugin.cc
+++ b/content/renderer/browser_plugin/browser_plugin.cc
@@ -72,6 +72,7 @@ BrowserPlugin::BrowserPlugin(
       navigate_src_sent_(false),
       process_id_(-1),
       persist_storage_(false),
+      content_window_routing_id_(MSG_ROUTING_NONE),
       visible_(true),
       current_nav_entry_index_(0),
       nav_entry_count_(0) {
@@ -142,6 +143,17 @@ void BrowserPlugin::SetSrcAttribute(const std::string& src) {
   guest_crashed_ = false;
 }
 
+NPObject* BrowserPlugin::GetContentWindow() const {

[abarth-chromium, 2012/10/16 18:47:27]

This function LGTM

[Fady Samuel, 2012/10/16 19:17:08]

Thanks Adam.

+  if (content_window_routing_id_ == MSG_ROUTING_NONE)
+    return NULL;
+  RenderViewImpl* guest_render_view = static_cast<RenderViewImpl*>(
+      ChildThread::current()->ResolveRoute(content_window_routing_id_));
+  if (!guest_render_view)
+    return NULL;
+  WebKit::WebFrame* guest_frame = guest_render_view->GetWebView()->mainFrame();
+  return guest_frame->windowObject();
+}
+
 std::string BrowserPlugin::GetPartitionAttribute() const {
   std::string value;
   if (persist_storage_)
@@ -493,6 +505,11 @@ void BrowserPlugin::AdvanceFocus(bool reverse) {
     render_view_->GetWebView()->advanceFocus(reverse);
 }
 
+void BrowserPlugin::GuestContentWindowReady(int content_window_routing_id) {
+  DCHECK(content_window_routing_id != MSG_ROUTING_NONE);
+  content_window_routing_id_ = content_window_routing_id;
+}
+
 void BrowserPlugin::SetAcceptTouchEvents(bool accept) {
   if (container())
     container()->setIsAcceptingTouchEvents(accept);