Cleanup: Fix content header include guards.

content/renderer/pepper/host_resource_var.h

 // Copyright 2013 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.
 
-#ifndef PPAPI_CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
-#define PPAPI_CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
+#ifndef CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
+#define CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ipc/ipc_message.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/shared_impl/resource_var.h"
 #include "ppapi/shared_impl/var.h"
 
 namespace content {
 
 // Represents a resource var, usable on the host side. Can either have a
@@ skipping 39 matching lines @@
 
   // If the plugin-side resource has not yet been created, carries a message to
   // create a resource of the specific type on the plugin side. Otherwise, NULL.
   scoped_ptr<IPC::Message> creation_message_;
 
   DISALLOW_COPY_AND_ASSIGN(HostResourceVar);
 };
 
 }  // namespace content
 
-#endif
+#endif  // CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_