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

ppapi/proxy/plugin_var_tracker.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_var_tracker.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "ppapi/c/dev/ppp_class_deprecated.h"
 #include "ppapi/c/ppb_var.h"
@@ skipping 38 matching lines @@
   // Actually create the PP_Var, this will add all the tracking info but not
   // adjust any refcounts.
   PP_Var ret = GetOrCreateObjectVarID(object.get());
 
   VarInfo& info = GetLiveVar(ret)->second;
   if (info.ref_count > 0) {
     // We already had a reference to it before. That means the renderer now has
     // two references on our behalf. We want to transfer that extra reference
     // to our list. This means we addref in the plugin, and release the extra
     // one in the renderer.
-    SendReleaseObjectMsg(*object);
+    SendReleaseObjectMsg(*object.get());
   }
   info.ref_count++;
   return ret;
 }
 
 PP_Var PluginVarTracker::TrackObjectWithNoReference(
     const PP_Var& host_var,
     PluginDispatcher* dispatcher) {
   CheckThreadingPreconditions();
   DCHECK(host_var.type == PP_VARTYPE_OBJECT);
@@ skipping 330 matching lines @@
     int id,
     PP_Instance instance,
     base::SharedMemoryHandle* handle,
     uint32* size_in_bytes) {
   NOTREACHED();
   return false;
 }
 
 }  // namesace proxy
 }  // namespace ppapi