Reland change for aura tooltips that was revert due to build break:

views/views.gyp

 # Copyright (c) 2011 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,
   },
 
   'target_defaults': {
     'conditions': [
@@ skipping 325 matching lines @@
         '../ui/views/widget/drop_target_gtk.cc',
         '../ui/views/widget/drop_target_gtk.h',
         '../ui/views/widget/drop_target_win.cc',
         '../ui/views/widget/drop_target_win.h',
         '../ui/views/widget/gtk_views_fixed.cc',
         '../ui/views/widget/gtk_views_fixed.h',
         '../ui/views/widget/gtk_views_window.cc',
         '../ui/views/widget/gtk_views_window.h',
         '../ui/views/widget/root_view.cc',
         '../ui/views/widget/root_view.h',
+        '../ui/views/widget/tooltip_manager_aura.cc',
+        '../ui/views/widget/tooltip_manager_aura.h',
         '../ui/views/widget/tooltip_manager_gtk.cc',
         '../ui/views/widget/tooltip_manager_gtk.h',
-        '../ui/views/widget/tooltip_manager_views.cc',
-        '../ui/views/widget/tooltip_manager_views.h',
         '../ui/views/widget/tooltip_manager_win.cc',
         '../ui/views/widget/tooltip_manager_win.h',
         '../ui/views/widget/tooltip_manager.cc',
         '../ui/views/widget/tooltip_manager.h',
         '../ui/views/widget/monitor_win.cc',
         '../ui/views/widget/monitor_win.h',
         '../ui/views/widget/native_widget.h',
         '../ui/views/widget/native_widget_aura.cc',
         '../ui/views/widget/native_widget_aura.h',
         '../ui/views/widget/native_widget_delegate.h',
@@ skipping 164 matching lines @@
         '../ui/views/controls/textfield/textfield_views_model_unittest.cc',
         '../ui/views/events/event_unittest.cc',
         '../ui/views/focus/accelerator_handler_gtk_unittest.cc',
         '../ui/views/focus/focus_manager_test.h',
         '../ui/views/focus/focus_manager_test.cc',
         '../ui/views/focus/focus_manager_unittest.cc',
         '../ui/views/focus/focus_manager_unittest_win.cc',
         '../ui/views/focus/focus_traversal_unittest.cc',
         '../ui/views/layout/box_layout_unittest.cc',
         '../ui/views/layout/grid_layout_unittest.cc',
+        '../ui/views/test/test_tooltip_client.cc',
+        '../ui/views/test/test_tooltip_client.h',
         '../ui/views/test/test_views_delegate.cc',
         '../ui/views/test/test_views_delegate.h',
         '../ui/views/test/views_test_base.cc',
         '../ui/views/test/views_test_base.h',
         '../ui/views/view_unittest.cc',
         '../ui/views/widget/native_widget_test_utils.h',
         '../ui/views/widget/native_widget_test_utils_aura.cc',
         '../ui/views/widget/native_widget_test_utils_gtk.cc',
         '../ui/views/widget/native_widget_test_utils_win.cc',
         '../ui/views/widget/native_widget_unittest.cc',
@@ skipping 36 matching lines @@
           'sources/': [
             ['exclude', '../ui/views/controls/combobox/native_combobox_views_unittest.cc'],
             ['exclude', '../ui/views/controls/tabbed_pane/tabbed_pane_unittest.cc'],
             ['exclude', '../ui/views/controls/table/table_view_unittest.cc'],
             ['exclude', '../ui/views/widget/native_widget_win_unittest.cc'],
           ],
         }, {
           'sources/': [
             ['exclude', '../ui/aura/test/test_desktop_delegate.cc'],
             ['exclude', '../ui/aura/test/test_desktop_delegate.h'],
+            ['exclude', '../ui/views/test/test_tooltip_client.cc'],
           ],
         }],
       ],
     },  # target_name: views_unittests
     {
       'target_name': 'views_examples_lib',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
@@ skipping 134 matching lines @@
             'VCManifestTool': {
               'AdditionalManifestFiles': '..\\ui\\views\\examples\\views_examples.exe.manifest',
             },
           },
         }],
       ],
     },  # target_name: views_examples_lib
 
   ],
 }