Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/ui/panels/panel_mouse_watcher_unittest.cc

-// 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.
-
-#include "chrome/browser/ui/panels/panel_mouse_watcher.h"
-
-#include <memory>
-
-#include "base/message_loop/message_loop.h"
-#include "chrome/browser/ui/panels/panel_mouse_watcher_observer.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/geometry/point.h"
-
-class TestMouseObserver : public PanelMouseWatcherObserver {
- public:
-  TestMouseObserver() : mouse_movements_(0) {}
-  // Overridden from PanelMouseWatcherObserver:
-  void OnMouseMove(const gfx::Point& mouse_position) override {
-    ++mouse_movements_;
-  }
-  int mouse_movements_;
-};
-
-class PanelMouseWatcherTest : public testing::Test {
-};
-
-TEST_F(PanelMouseWatcherTest, StartStopWatching) {
-  base::MessageLoopForUI loop;
-
-  std::unique_ptr<PanelMouseWatcher> watcher(PanelMouseWatcher::Create());
-  EXPECT_FALSE(watcher->IsActive());
-
-  std::unique_ptr<TestMouseObserver> user1(new TestMouseObserver());
-  std::unique_ptr<TestMouseObserver> user2(new TestMouseObserver());
-
-  // No observers.
-  watcher->NotifyMouseMovement(gfx::Point(42, 101));
-  EXPECT_EQ(0, user1->mouse_movements_);
-  EXPECT_EQ(0, user2->mouse_movements_);
-
-  // Only one mouse observer.
-  watcher->AddObserver(user1.get());
-  EXPECT_TRUE(watcher->IsActive());
-  watcher->NotifyMouseMovement(gfx::Point(42, 101));
-  EXPECT_GE(user1->mouse_movements_, 1);
-  EXPECT_EQ(0, user2->mouse_movements_);
-  watcher->RemoveObserver(user1.get());
-  EXPECT_FALSE(watcher->IsActive());
-
-  // More than one mouse observer.
-  watcher->AddObserver(user1.get());
-  EXPECT_TRUE(watcher->IsActive());
-  watcher->AddObserver(user2.get());
-  watcher->NotifyMouseMovement(gfx::Point(101, 42));
-  EXPECT_GE(user1->mouse_movements_, 2);
-  EXPECT_GE(user2->mouse_movements_, 1);
-
-  // Back to one observer.
-  watcher->RemoveObserver(user1.get());
-  EXPECT_TRUE(watcher->IsActive());
-  int saved_count = user1->mouse_movements_;
-  watcher->NotifyMouseMovement(gfx::Point(1, 2));
-  EXPECT_EQ(saved_count, user1->mouse_movements_);
-  EXPECT_GE(user2->mouse_movements_, 2);
-  watcher->RemoveObserver(user2.get());
-  EXPECT_FALSE(watcher->IsActive());
-}