Update ppapi/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

ppapi/proxy/plugin_globals.cc

 // Copyright (c) 2012 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 "ppapi/proxy/plugin_globals.h"
 
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sender.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_proxy_delegate.h"
@@ skipping 58 matching lines @@
 }
 
 PluginGlobals::~PluginGlobals() {
   DCHECK(plugin_globals_ == this || !plugin_globals_);
   {
     ProxyAutoLock lock;
     // Release the main-thread message loop. We should have the last reference
     // count, so this will delete the MessageLoop resource. We do this before
     // we clear plugin_globals_, because the Resource destructor tries to access
     // this PluginGlobals.
-    DCHECK(!loop_for_main_thread_ || loop_for_main_thread_->HasOneRef());
+    DCHECK(!loop_for_main_thread_.get() || loop_for_main_thread_->HasOneRef());
     loop_for_main_thread_ = NULL;
   }
   plugin_globals_ = NULL;
 }
 
 ResourceTracker* PluginGlobals::GetResourceTracker() {
   return &plugin_resource_tracker_;
 }
 
 VarTracker* PluginGlobals::GetVarTracker() {
@@ skipping 82 matching lines @@
 MessageLoopResource* PluginGlobals::loop_for_main_thread() {
   return loop_for_main_thread_.get();
 }
 
 bool PluginGlobals::IsPluginGlobals() const {
   return true;
 }
 
 }  // namespace proxy
 }  // namespace ppapi