<webview>: Partially migrate loadcommit event from content to chrome

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 cd75c2379ed79ae112aa728649a6c64a235e6fd9..0799079cdb942869df20b961ee0de4b86273d25d 100644
--- a/content/renderer/browser_plugin/browser_plugin.cc
+++ b/content/renderer/browser_plugin/browser_plugin.cc
@@ -416,6 +416,11 @@ void BrowserPlugin::Attach(int guest_instance_id) {
   guest_instance_id_ = guest_instance_id;
   browser_plugin_manager()->AddBrowserPlugin(guest_instance_id, this);
 
+  std::map<std::string, base::Value*> props;
+  props[browser_plugin::kWindowID] =
+      new base::FundamentalValue(guest_instance_id);
+  TriggerEvent(browser_plugin::kEventInternalAttached, &props);
+
   BrowserPluginHostMsg_Attach_Params create_guest_params;
   create_guest_params.browser_plugin_instance_id = instance_id_;
   create_guest_params.focused = ShouldGuestBeFocused();
@@ -572,12 +577,6 @@ void BrowserPlugin::OnLoadCommit(
 
   current_nav_entry_index_ = params.current_entry_index;
   nav_entry_count_ = params.entry_count;
-
-  std::map<std::string, base::Value*> props;
-  props[browser_plugin::kURL] = new base::StringValue(params.url.spec());
-  props[browser_plugin::kIsTopLevel] =
-      new base::FundamentalValue(params.is_top_level);
-  TriggerEvent(browser_plugin::kEventLoadCommit, &props);
 }
 
 void BrowserPlugin::OnLoadHandlerCalled(int guest_instance_id) {