Remove references to IsNewAvatarMenu since the flag was removed.

chrome/browser/ui/cocoa/profiles/avatar_menu_bubble_controller_unittest.mm

 // Copyright 2014 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.
 
 #import "chrome/browser/ui/cocoa/profiles/avatar_menu_bubble_controller.h"
 
 #include "base/command_line.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_pump_mac.h"
@@ skipping 11 matching lines @@
 #import "ui/base/cocoa/controls/hyperlink_button_cell.h"
 #include "ui/events/test/cocoa_test_event_utils.h"
 
 class AvatarMenuBubbleControllerTest : public CocoaTest {
  public:
   AvatarMenuBubbleControllerTest()
       : manager_(TestingBrowserProcess::GetGlobal()) {
   }
 
   void SetUp() override {
-    switches::DisableNewAvatarMenuForTesting(
-        base::CommandLine::ForCurrentProcess());
-
     CocoaTest::SetUp();
     ASSERT_TRUE(manager_.SetUp());
 
     manager_.CreateTestingProfile(
         "test1", scoped_ptr<syncable_prefs::PrefServiceSyncable>(),
         base::ASCIIToUTF16("Test 1"), 1, std::string(),
         TestingProfile::TestingFactories());
     manager_.CreateTestingProfile(
         "test2", scoped_ptr<syncable_prefs::PrefServiceSyncable>(),
         base::ASCIIToUTF16("Test 2"), 0, std::string(),
@@ skipping 223 matching lines @@
   [controller() keyDown:event];
   EXPECT_EQ([[controller() items] objectAtIndex:0], GetHighlightedItem());
 
   [controller() keyDown:event];
   EXPECT_EQ([[controller() items] objectAtIndex:1], GetHighlightedItem());
 
   // There are no more items now so going up should stay at the first item.
   [controller() keyDown:event];
   EXPECT_EQ([[controller() items] objectAtIndex:1], GetHighlightedItem());
 }