[Password Manager] Add UMA stats to track interaction with synced accounts.

chrome/browser/password_manager/password_store_mac_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "base/basictypes.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 1054 matching lines @@
     base::FilePath db_file = db_dir_.path().AppendASCII("login.db");
     ASSERT_TRUE(login_db_->Init(db_file));
 
     keychain_ = new MockAppleKeychain();
 
     store_ = new TestPasswordStoreMac(
         base::MessageLoopProxy::current(),
         base::MessageLoopProxy::current(),
         keychain_,
         login_db_);
-    ASSERT_TRUE(store_->Init(syncer::SyncableService::StartSyncFlare()));
+    ASSERT_TRUE(store_->Init(syncer::SyncableService::StartSyncFlare(), ""));
   }
 
   virtual void TearDown() {
     store_->Shutdown();
     EXPECT_FALSE(store_->GetBackgroundTaskRunner());
   }
 
   void WaitForStoreUpdate() {
     // Do a store-level query to wait for all the operations above to be done.
     MockPasswordStoreConsumer consumer;
@@ skipping 299 matching lines @@
   ASSERT_EQ(1u, matching_items.size());
   EXPECT_EQ(ASCIIToUTF16("joe_user"), matching_items[0]->username_value);
   matching_items.clear();
 
   // Check the third-party password is still there.
   owned_keychain_adapter.SetFindsOnlyOwnedItems(false);
   matching_items.get() = owned_keychain_adapter.PasswordsFillingForm(
       "http://some.domain.com/insecure.html", PasswordForm::SCHEME_HTML);
   ASSERT_EQ(1u, matching_items.size());
 }