Move cancelable_request.cc/h to chrome/browser/common.

chrome/browser/common/cancelable_request.h

 // 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.
 
 // CancelableRequestProviders and Consumers work together to make requests that
 // execute on a background thread in the provider and return data to the
 // consumer. These classes collaborate to keep a list of open requests and to
 // make sure that requests do not outlive either of the objects involved in the
 // transaction.
 //
@@ skipping 67 matching lines @@
 //       // Depending on your typedefs, one of these two forms will be more
 //       // convenient:
 //       request->ForwardResult(Tuple1<int>(return_value));
 //
 //       // -- or --  (inferior in this case)
 //       request->ForwardResult(Frontend::RequestCallbackType::TupleType(
 //           return_value));
 //     }
 //   };
 
-#ifndef CHROME_BROWSER_CANCELABLE_REQUEST_H_
-#define CHROME_BROWSER_CANCELABLE_REQUEST_H_
+#ifndef CHROME_BROWSER_COMMON_CANCELABLE_REQUEST_H_
+#define CHROME_BROWSER_COMMON_CANCELABLE_REQUEST_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/callback_internal.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
@@ skipping 906 matching lines @@
       : CancelableRequest<CB>(callback), value() {
   }
 
   // The value.
   Type value;
 
  protected:
   virtual ~CancelableRequest1() {}
 };
 
-#endif  // CHROME_BROWSER_CANCELABLE_REQUEST_H_
+#endif  // CHROME_BROWSER_COMMON_CANCELABLE_REQUEST_H_