Remove MutableProfileOAuth2TokenService on iOS.

chrome/browser/signin/fake_profile_oauth2_token_service.h

Index: chrome/browser/signin/fake_profile_oauth2_token_service.h
diff --git a/chrome/browser/signin/fake_profile_oauth2_token_service.h b/chrome/browser/signin/fake_profile_oauth2_token_service.h
index 3a3523085ce31847da48ee26ad5650c7077e3ce8..e0eccee831149c189c6a02dedc9ffd2cef7b59e9 100644
--- a/chrome/browser/signin/fake_profile_oauth2_token_service.h
+++ b/chrome/browser/signin/fake_profile_oauth2_token_service.h
@@ -13,6 +13,8 @@
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/signin/android_profile_oauth2_token_service.h"
+#elif defined(OS_IOS)
+#include "components/signin/ios/browser/profile_oauth2_token_service_ios.h"
 #else
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #endif
@@ -40,6 +42,8 @@
 class FakeProfileOAuth2TokenService
 #if defined(OS_ANDROID)
   : public AndroidProfileOAuth2TokenService {
+#elif defined(OS_IOS)
+  : public ProfileOAuth2TokenServiceIOS {
 #else
   : public ProfileOAuth2TokenService {
 #endif
@@ -135,6 +139,11 @@ class FakeProfileOAuth2TokenService
 
   virtual net::URLRequestContextGetter* GetRequestContext() OVERRIDE;
 
+#if defined(OS_IOS)
+  virtual void AddOrUpdateAccount(const std::string& account_id) OVERRIDE;
+  virtual void RemoveAccount(const std::string& account_id) OVERRIDE;
+#endif

[Roger Tawa OOO till Jul 10th, 2014/08/20 15:43:57]

Don't you need to define these functions in the cc file?

+
  private:
   // Helper function to complete pending requests - if |all_scopes| is true,
   // then all pending requests are completed, otherwise, only those requests