views: Do not set capture on a widget if it cannot be activated.

ui/views/widget/widget.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 "ui/views/widget/widget.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 500 matching lines @@
       native_widget_->ShowWithWindowState(saved_show_state_);
     }
     // |saved_show_state_| only applies the first time the window is shown.
     // If we don't reset the value the window may be shown maximized every time
     // it is subsequently shown after being hidden.
     saved_show_state_ = ui::SHOW_STATE_NORMAL;
   } else {
     native_widget_->Show();
   }
 
-  if (close_on_deactivate_) {
+  if (CanActivate() && close_on_deactivate_) {
     // Set mouse capture on timeout in case this is called from a
     // mouse pressed handler.
     MessageLoopForUI::current()->PostTask(FROM_HERE, base::Bind(
            &Widget::SetMouseCapture, set_capture_factory_.GetWeakPtr(),
            static_cast<View*>(NULL)));
   }
 }
 
 void Widget::Hide() {
   native_widget_->Hide();
@@ skipping 750 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views