Cancel drag if display configuration changes.

ash/wm/toplevel_window_event_handler_unittest.cc

 // 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.
 
 #include "ash/wm/toplevel_window_event_handler.h"
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace/snap_sizer.h"
@@ skipping 457 matching lines @@
 TEST_F(ToplevelWindowEventHandlerTest, MAYBE_EscapeReverts) {
   aura::RootWindow* root = Shell::GetPrimaryRootWindow();
   aura::client::ActivationClient* original_client =
       aura::client::GetActivationClient(root);
   aura::test::TestActivationClient activation_client(root);
   scoped_ptr<aura::Window> target(CreateWindow(HTBOTTOMRIGHT));
   target->Focus();
   aura::test::EventGenerator generator(Shell::GetPrimaryRootWindow(),
                                        target.get());
   generator.PressLeftButton();
-  generator.MoveMouseTo(generator.current_location().Add(gfx::Point(10, 11)));
+  generator.MoveMouseBy(10, 11);
 
   // Execute any scheduled draws so that pending mouse events are processed.
   RunAllPendingInMessageLoop();
 
   EXPECT_EQ("0,0 110x111", target->bounds().ToString());
   generator.PressKey(ui::VKEY_ESCAPE, 0);
   generator.ReleaseKey(ui::VKEY_ESCAPE, 0);
   EXPECT_EQ("0,0 100x100", target->bounds().ToString());
   aura::client::SetActivationClient(root, original_client);
 }
 
 }  // namespace test
 }  // namespace ash