Add FilePath to base namespace.

chrome/test/chromedriver/chrome_launcher_impl.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.
 
 #ifndef CHROME_TEST_CHROMEDRIVER_CHROME_LAUNCHER_IMPL_H_
 #define CHROME_TEST_CHROMEDRIVER_CHROME_LAUNCHER_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/test/chromedriver/chrome_launcher.h"
 #include "chrome/test/chromedriver/net/sync_websocket_factory.h"
 
 class Chrome;
-class FilePath;
 class Status;
 class URLRequestContextGetter;
 
+namespace base {
+class FilePath;
+}
+
 class ChromeLauncherImpl : public ChromeLauncher {
  public:
   explicit ChromeLauncherImpl(URLRequestContextGetter* context_getter,
                               const SyncWebSocketFactory& socket_factory);
   virtual ~ChromeLauncherImpl();
 
   // Overridden from ChromeLauncher:
-  virtual Status Launch(const FilePath& chrome_exe,
+  virtual Status Launch(const base::FilePath& chrome_exe,
                         scoped_ptr<Chrome>* chrome) OVERRIDE;
 
  private:
   scoped_refptr<URLRequestContextGetter> context_getter_;
   SyncWebSocketFactory socket_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherImpl);
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CHROME_LAUNCHER_IMPL_H_