Fix processing of mouse events on MacViews.

ui/views/BUILD.gn

 # 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("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/ozone/ozone.gni")
 
 config("flags") {
@@ skipping 859 matching lines @@
 
   # Make all deps in this target public so both views_unittests and
   # views_mus_unittests will get them.
   public_deps = [
     ":test_support",
     "//base",
     "//base:i18n",
     "//base/test:test_support",
     "//cc",
     "//skia",
+    "//testing/gmock",

[Avi (use Gerrit), 2016/10/25 15:34:50]

Why are you changing this?

[snake, 2016/10/25 15:46:18]

For using gmock in tests

[tapted, 2016/10/26 00:56:59]

gmock isn't allowed under src/ui/views  --  ui/views/DEPS has 

include_rules = [
  ...
  "-testing/gmock",
]

the OWNERS have decided that delegate, observer, and TestApi patterns are the
preferred way of testing.

     "//testing/gtest",
     "//third_party/icu",
     "//ui/accessibility",
     "//ui/base",
     "//ui/base:test_support",
     "//ui/base/ime",
     "//ui/compositor:test_support",
     "//ui/events:dom_keycode_converter",
     "//ui/events:events_base",
     "//ui/events:test_support",
@@ skipping 122 matching lines @@
       "//ui/base:test_support",
       "//ui/compositor",
       "//ui/events:test_support",
       "//ui/gl:test_support",
       "//ui/resources",
       "//ui/resources:ui_test_pak",
       "//ui/strings",
     ]
   }
 }