Fix focus loss on partial lock.

ash/wm/session_state_animator.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/session_state_animator.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
 #include "ash/wm/workspace/workspace_animations.h"
@@ skipping 143 matching lines @@
 void HideWindow(aura::Window* window,
                 base::TimeDelta duration,
                 WorkspaceAnimationDirection direction,
                 ui::LayerAnimationObserver* observer) {
   WorkspaceAnimationDetails details;
   details.direction = direction;
   details.animate = true;
   details.animate_scale = true;
   details.animate_opacity = true;
   details.duration = duration;
+  details.can_be_cancelled = true;
   HideWorkspace(window, details);
   // A bit of a dirty trick: we need to catch the end of the animation we don't
   // control. So we use two facts we know: which animator will be used and the
   // target opacity to add "Do nothing" animation sequence.
   // Unfortunately, we can not just use empty LayerAnimationSequence, because
   // it does not call NotifyEnded().
   ui::LayerAnimationSequence* sequence = new ui::LayerAnimationSequence(
       ui::LayerAnimationElement::CreateOpacityElement(
           0.0, base::TimeDelta()));
   if (observer)
@@ skipping 371 matching lines @@
   foreground_->SetColor(SK_ColorWHITE);
   foreground_->GetWidget()->Show();
 }
 
 void SessionStateAnimator::DropForeground() {
   foreground_.reset();
 }
 
 }  // namespace internal
 }  // namespace ash