Add FilePath to base namespace.

chrome_frame/test_utils.h

Index: chrome_frame/test_utils.h
diff --git a/chrome_frame/test_utils.h b/chrome_frame/test_utils.h
index f07bfbed9b1d94da2f43ed15d7eada38b8f2615e..6366ad9813b67bbc2413c27a82cc98b42cf71986 100644
--- a/chrome_frame/test_utils.h
+++ b/chrome_frame/test_utils.h
@@ -12,7 +12,9 @@
 
 #include "base/string16.h"
 
+namespace base {
 class FilePath;
+}
 
 extern const wchar_t kChromeFrameDllName[];
 extern const wchar_t kChromeLauncherExeName[];
@@ -50,7 +52,7 @@ class ScopedChromeFrameRegistrar {
   static void UnregisterAtPath(const std::wstring& path,
                                RegistrationType registration_type);
   static void RegisterDefaults();
-  static FilePath GetReferenceChromeFrameDllPath();
+  static base::FilePath GetReferenceChromeFrameDllPath();
 
   // Registers or unregisters a COM DLL and exits the process if the process's
   // command line is:
@@ -89,7 +91,7 @@ class ScopedChromeFrameRegistrar {
 // Returns the path to the Chrome Frame DLL in the build directory. Assumes
 // that the test executable is running from the build folder or a similar
 // folder structure.
-FilePath GetChromeFrameBuildPath();
+base::FilePath GetChromeFrameBuildPath();
 
 // Callback description for onload, onloaderror, onmessage
 static _ATL_FUNC_INFO g_single_param = {CC_STDCALL, VT_EMPTY, 1, {VT_VARIANT}};