Add ink drop masking to TrayBackgroundView

ui/views/animation/ink_drop_unittest.cc

 // Copyright 2015 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 <memory>
 
 #include "base/macros.h"
 #include "base/test/test_mock_time_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/timer/timer.h"
@@ skipping 39 matching lines @@
 
 InkDropTest::InkDropTest() : ink_drop_(nullptr) {
   zero_duration_mode_.reset(new ui::ScopedAnimationDurationScaleMode(
       ui::ScopedAnimationDurationScaleMode::ZERO_DURATION));
 
   switch (GetInkDropType()) {
     case INK_DROP_STUB:
       ink_drop_.reset(new InkDropStub());
       break;
     case INK_DROP_IMPL:
-      ink_drop_.reset(new InkDropImpl(&test_ink_drop_host_));
+      ink_drop_.reset(new InkDropImpl(&test_ink_drop_host_, gfx::Size()));
       // The Timer's used by the InkDropImpl class require a
       // base::ThreadTaskRunnerHandle instance.
       scoped_refptr<base::TestMockTimeTaskRunner> task_runner(
           new base::TestMockTimeTaskRunner);
       thread_task_runner_handle_.reset(
           new base::ThreadTaskRunnerHandle(task_runner));
       break;
   }
 }
 
@@ skipping 56 matching lines @@
 TEST_P(InkDropTest, TypicalSlowActivated) {
   ink_drop_->AnimateToState(InkDropState::ACTION_PENDING);
   ink_drop_->AnimateToState(InkDropState::ALTERNATE_ACTION_PENDING);
   ink_drop_->AnimateToState(InkDropState::ACTIVATED);
   ink_drop_->AnimateToState(InkDropState::DEACTIVATED);
   EXPECT_EQ(InkDropState::HIDDEN, ink_drop_->GetTargetInkDropState());
 }
 
 }  // namespace test
 }  // namespace views