Pepper proxy: make the browser sender handle the proxy lock properly.

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index bb103c3ce6e07c413786c3a6f5e32f26c7e15b2b..8331e75c868969cfb6d612c105aae7dacf682905 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -15,7 +15,6 @@
 #include "ppapi/proxy/flash_menu_resource.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_globals.h"
-#include "ppapi/proxy/plugin_proxy_delegate.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppb_audio_proxy.h"
@@ -384,9 +383,7 @@ bool ResourceCreationProxy::OnMessageReceived(const IPC::Message& msg) {
 }
 
 Connection ResourceCreationProxy::GetConnection() {
-  return Connection(
-      PluginGlobals::Get()->plugin_proxy_delegate()->GetBrowserSender(),
-      dispatcher());
+  return Connection(PluginGlobals::Get()->GetBrowserSender(), dispatcher());
 }
 
 }  // namespace proxy