Use FilePath in URLRequestMocks.

chrome/browser/net/url_request_slow_http_job.h

Index: chrome/browser/net/url_request_slow_http_job.h
diff --git a/chrome/browser/net/url_request_slow_http_job.h b/chrome/browser/net/url_request_slow_http_job.h
index d51e2d21de5d0783520d7b037d209d50563f5322..5385ff8bc31284a81e506f244a03a069607b1e0b 100644
--- a/chrome/browser/net/url_request_slow_http_job.h
+++ b/chrome/browser/net/url_request_slow_http_job.h
@@ -21,10 +21,10 @@ class URLRequestSlowHTTPJob : public URLRequestMockHTTPJob {
   static URLRequest::ProtocolFactory Factory;
 
   // Adds the testing URLs to the URLRequestFilter.
-  static void AddUrlHandler(const std::wstring& base_path);
+  static void AddUrlHandler(const FilePath& base_path);
 
   // Given the path to a file relative to base_path_, construct a mock URL.
-  static GURL GetMockUrl(const std::wstring& path);
+  static GURL GetMockUrl(const FilePath& path);
 
   virtual void Start();
 
@@ -35,7 +35,7 @@ class URLRequestSlowHTTPJob : public URLRequestMockHTTPJob {
 
   // This is the file path leading to the root of the directory to use as the
   // root of the http server.
-  static std::wstring base_path_;
+  static FilePath base_path_;
 };
 
 # endif  // CHROME_BROWSER_NET_URL_REQUEST_SLOW_HTTP_JOB_H_