Refactor OAuth2TokenService to have profile- and device-based implementations.

chrome/test/base/testing_browser_process.cc

Index: chrome/test/base/testing_browser_process.cc
diff --git a/chrome/test/base/testing_browser_process.cc b/chrome/test/base/testing_browser_process.cc
index 5670db16c60ecff351faf58cb9c32d1c9ca90e26..d329e15aadcaa7b0687f548ec515870fd7063867 100644
--- a/chrome/test/base/testing_browser_process.cc
+++ b/chrome/test/base/testing_browser_process.cc
@@ -180,6 +180,11 @@ net::URLRequestContextGetter* TestingBrowserProcess::system_request_context() {
 chromeos::OomPriorityManager* TestingBrowserProcess::oom_priority_manager() {
   return NULL;
 }
+
+chromeos::DeviceOAuth2TokenService*
+    TestingBrowserProcess::device_oauth2_token_service() {
+  return NULL;
+}
 #endif  // defined(OS_CHROMEOS)
 
 extensions::EventRouterForwarder*