Remove old FocusManager code from Aura.

ui/aura/aura.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 61 matching lines @@
         'client/visibility_client.h',
         'client/window_move_client.cc',
         'client/window_move_client.h',
         'client/window_types.h',
         'device_list_updater_aurax11.cc',
         'device_list_updater_aurax11.h',
         'dispatcher_win.cc',
         'env.cc',
         'env.h',
         'env_observer.h',
-        'focus_manager.cc',
-        'focus_manager.h',
         'input_state_lookup.cc',
         'input_state_lookup.h',
         'input_state_lookup_win.cc',
         'input_state_lookup_win.h',
         'layout_manager.cc',
         'layout_manager.h',
         'remote_root_window_host_win.cc',
         'remote_root_window_host_win.h',
         'root_window_host.h',
         'root_window_host_delegate.h',
@@ skipping 58 matching lines @@
         'test/aura_test_helper.h',
         'test/env_test_helper.h',
         'test/event_generator.cc',
         'test/event_generator.h',
         'test/test_aura_initializer.cc',
         'test/test_aura_initializer.h',
         'test/test_cursor_client.cc',
         'test/test_cursor_client.h',
         'test/test_event_handler.cc',
         'test/test_event_handler.h',
+        'test/test_focus_client.cc',
+        'test/test_focus_client.h',
         'test/test_screen.cc',
         'test/test_screen.h',
         'test/test_stacking_client.cc',
         'test/test_stacking_client.h',
         'test/test_windows.cc',
         'test/test_windows.h',
         'test/test_window_delegate.cc',
         'test/test_window_delegate.h',
         'test/ui_controls_factory_aura.h',
         'test/ui_controls_factory_aurawin.cc',
@@ skipping 127 matching lines @@
         ['OS=="linux" and linux_use_tcmalloc==1', {
           'dependencies': [
            # See http://crbug.com/162998#c4 for why this is needed.
             '../../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
     },
   ],
 }