Add setup for integration tests in FakeChromeIdentityService.

ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h

Index: ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h
diff --git a/ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h b/ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h
index dbec6dc7185ff4b35734c2e165941fbb367b6fa7..1755d105521456041adcaa28055e745b47cb7f11 100644
--- a/ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h
+++ b/ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h
@@ -18,7 +18,7 @@ namespace ios {
 class FakeChromeIdentityService : public ChromeIdentityService {
  public:
   FakeChromeIdentityService();
-  ~FakeChromeIdentityService();
+  virtual ~FakeChromeIdentityService();
 
   // Convenience method that returns the instance of
   // |FakeChromeIdentityService| from the ChromeBrowserProvider.
@@ -41,6 +41,15 @@ class FakeChromeIdentityService : public ChromeIdentityService {
                     const std::set<std::string>& scopes,
                     const ios::AccessTokenCallback& callback));
 
+  MOCK_METHOD2(GetAvatarForIdentity,
+               void(ChromeIdentity* identity, GetAvatarCallback callback));
+
+  MOCK_METHOD1(GetCachedAvatarForIdentity, UIImage*(ChromeIdentity* identity));
+
+  MOCK_METHOD2(GetHostedDomainForIdentity,
+               void(ChromeIdentity* identity,
+                    GetHostedDomainCallback callback));
+
   MOCK_METHOD1(GetMDMDeviceStatus,
                ios::MDMDeviceStatus(NSDictionary* user_info));
 
@@ -49,6 +58,9 @@ class FakeChromeIdentityService : public ChromeIdentityService {
                     NSDictionary* user_info,
                     ios::MDMStatusCallback callback));
 
+  // Sets up the mock methods for integration tests.
+  void SetUpForIntegrationTests();
+
   // Adds the identities given their name.
   void AddIdentities(NSArray* identitiesNames);