Refactor AO2TS to make it easier to componentize.

ios/public/provider/chrome/browser/keyed_service_provider.h

Index: ios/public/provider/chrome/browser/keyed_service_provider.h
diff --git a/ios/public/provider/chrome/browser/keyed_service_provider.h b/ios/public/provider/chrome/browser/keyed_service_provider.h
index c5c7862fbd609ae0e1e7a124c7b096354abaf705..0b32cc650ec863bf66116e9acb78170a223e4b40 100644
--- a/ios/public/provider/chrome/browser/keyed_service_provider.h
+++ b/ios/public/provider/chrome/browser/keyed_service_provider.h
@@ -11,7 +11,7 @@
 enum class ServiceAccessType;
 
 class KeyedServiceBaseFactory;
-class ProfileOAuth2TokenServiceIOS;
+class ProfileOAuth2TokenService;
 class SigninManager;
 
 namespace autofill {
@@ -59,12 +59,12 @@ class KeyedServiceProvider {
   virtual bookmarks::BookmarkModel* GetBookmarkModelForBrowserState(
       ChromeBrowserState* browser_state) = 0;
 
-  // Returns the ProfileOAuth2TokenServiceIOS factory for dependencies.
+  // Returns the ProfileOAuth2TokenService factory for dependencies.
   virtual KeyedServiceBaseFactory* GetProfileOAuth2TokenServiceIOSFactory() = 0;

[droger, 2015/06/29 11:55:53]

Can we also rename the functions here (remove IOS):
GetProfileOAuth2TokenServiceFactory()
GetProfileOAuth2TokenServiceForBrowserState()

[gogerald1, 2015/07/01 17:58:41]

Done.

 
-  // Returns an instance of ProfileOAuth2TokenServiceIOS tied to
+  // Returns an instance of ProfileOAuth2TokenService tied to
   // |browser_state|.
-  virtual ProfileOAuth2TokenServiceIOS*
+  virtual ProfileOAuth2TokenService*
   GetProfileOAuth2TokenServiceIOSForBrowserState(
       ChromeBrowserState* browser_state) = 0;