Move MessageLoop to base namespace.

chrome/browser/webdata/web_data_request_manager.h

Index: chrome/browser/webdata/web_data_request_manager.h
diff --git a/chrome/browser/webdata/web_data_request_manager.h b/chrome/browser/webdata/web_data_request_manager.h
index 1e1db64a0d6395550ba6e96e7df7fb39e649eb3b..c834113b739d69cb2e0f21d2083880706f66b644 100644
--- a/chrome/browser/webdata/web_data_request_manager.h
+++ b/chrome/browser/webdata/web_data_request_manager.h
@@ -17,11 +17,14 @@
 #include "chrome/browser/api/webdata/web_data_service_base.h"
 #include "chrome/browser/api/webdata/web_data_service_consumer.h"
 
-class MessageLoop;
 class WebDataService;
 class WebDataServiceConsumer;
 class WebDataRequestManager;
 
+namespace base {
+class MessageLoop;
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Webdata requests
@@ -42,7 +45,7 @@ class WebDataRequest {
   WebDataServiceConsumer* GetConsumer() const;
 
   // Retrieves the original message loop the of the request.
-  MessageLoop* GetMessageLoop() const;
+  base::MessageLoop* GetMessageLoop() const;
 
   // Returns |true| if the request was cancelled via the |Cancel()| method.
   bool IsCancelled() const;
@@ -67,7 +70,7 @@ class WebDataRequest {
   WebDataRequestManager* manager_;
 
   // Tracks loop that the request originated on.
-  MessageLoop* message_loop_;
+  base::MessageLoop* message_loop_;
 
   // Identifier for this request.
   WebDataServiceBase::Handle handle_;