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

ppapi/proxy/ppb_message_loop_proxy.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/ppb_message_loop_proxy.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 159 matching lines @@
   if (!globals->msg_loop_slot())
     return false;  // Can't be current if there's nothing in the slot.
   return static_cast<const void*>(globals->msg_loop_slot()->Get()) ==
          static_cast<const void*>(this);
 }
 
 void MessageLoopResource::PostClosure(
     const tracked_objects::Location& from_here,
     const base::Closure& closure,
     int64 delay_ms) {
-  if (loop_proxy_) {
-    loop_proxy_->PostDelayedTask(from_here,
-                                 closure,
-                                 base::TimeDelta::FromMilliseconds(delay_ms));
+  if (loop_proxy_.get()) {
+    loop_proxy_->PostDelayedTask(
+        from_here, closure, base::TimeDelta::FromMilliseconds(delay_ms));
   } else {
     TaskInfo info;
     info.from_here = FROM_HERE;
     info.closure = closure;
     info.delay_ms = delay_ms;
     pending_tasks_.push_back(info);
   }
 }
 
 // static
@@ skipping 72 matching lines @@
 PPB_MessageLoop_Proxy::~PPB_MessageLoop_Proxy() {
 }
 
 // static
 const PPB_MessageLoop_1_0* PPB_MessageLoop_Proxy::GetInterface() {
   return &ppb_message_loop_interface;
 }
 
 }  // namespace proxy
 }  // namespace ppapi