Reduce usage of MessageLoopProxy in base/

components/webdata/common/web_data_service_backend.h

Index: components/webdata/common/web_data_service_backend.h
diff --git a/components/webdata/common/web_data_service_backend.h b/components/webdata/common/web_data_service_backend.h
index 3804422f8e26beda77f19686689e1aabd2eaa127..32cdb56e99d40ed063e7dd20f75ee329a9e1cde7 100644
--- a/components/webdata/common/web_data_service_backend.h
+++ b/components/webdata/common/web_data_service_backend.h
@@ -10,7 +10,7 @@
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/ref_counted_delete_on_message_loop.h"
+#include "base/memory/ref_counted_delete_on_task_runner.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "components/webdata/common/web_database_service.h"
@@ -32,7 +32,7 @@ class Location;
 // TODO(caitkp): Rename this class to WebDatabaseBackend.
 
 class WEBDATA_EXPORT WebDataServiceBackend
-    : public base::RefCountedDeleteOnMessageLoop<WebDataServiceBackend> {
+    : public base::RefCountedDeleteOnTaskRunner<WebDataServiceBackend> {
  public:
   class Delegate {
    public:
@@ -85,7 +85,7 @@ class WEBDATA_EXPORT WebDataServiceBackend
   WebDatabase* database() { return db_.get(); }
 
  protected:
-  friend class base::RefCountedDeleteOnMessageLoop<WebDataServiceBackend>;
+  friend class base::RefCountedDeleteOnTaskRunner<WebDataServiceBackend>;
   friend class base::DeleteHelper<WebDataServiceBackend>;
 
   virtual ~WebDataServiceBackend();