Clear focused view if the focused view is in a window that is being destroyed.

Original CL (http://codereview.chromium.org/8821004/) was causing crash on some of browser_tests due to this.

BUG=104361
TEST=manual, and browser_tests now pass without crash


Review URL: http://codereview.chromium.org/8892025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114131 0039d316-1c4b-4281-b951-d872f2087c98

ui/views/widget/native_widget_aura.cc

@@ -574,9 +574,6 @@ void NativeWidgetAura::OnFocus() {
   if (widget->is_top_level()) {
     InputMethod* input_method = widget->GetInputMethod();
     input_method->OnFocus();
-    // See description of got_initial_focus_in_ for details on this.
-    // TODO(mazda): Investigate this is actually necessary.
-    // widget->GetFocusManager()->RestoreFocusedView();
   }
   delegate_->OnNativeFocus(window_);
 }
@@ -586,7 +583,6 @@ void NativeWidgetAura::OnBlur() {
   if (widget->is_top_level()) {
     InputMethod* input_method = widget->GetInputMethod();
     input_method->OnBlur();
-    widget->GetFocusManager()->StoreFocusedView();
   }
   delegate_->OnNativeBlur(NULL);
 }
@@ -672,12 +668,14 @@ bool NativeWidgetAura::ShouldActivate(aura::Event* event) {
 }
 
 void NativeWidgetAura::OnActivated() {
+  GetWidget()->GetFocusManager()->RestoreFocusedView();
   delegate_->OnNativeWidgetActivationChanged(true);
   if (IsVisible() && GetWidget()->non_client_view())
     GetWidget()->non_client_view()->SchedulePaint();
 }
 
 void NativeWidgetAura::OnLostActive() {
+  GetWidget()->GetFocusManager()->StoreFocusedView();
   delegate_->OnNativeWidgetActivationChanged(false);
   if (IsVisible() && GetWidget()->non_client_view())
     GetWidget()->non_client_view()->SchedulePaint();

ui/views/widget/widget.cc

@@ -365,7 +365,6 @@ void Widget::ViewHierarchyChanged(bool is_add, View* parent, View* child) {
   if (!is_add) {
     if (child == dragged_view_)
       dragged_view_ = NULL;
-
     FocusManager* focus_manager = GetFocusManager();
     if (focus_manager)
       focus_manager->ViewRemoved(child);
@@ -895,6 +894,10 @@ void Widget::OnNativeWidgetCreated() {
 }
 
 void Widget::OnNativeWidgetDestroying() {
+  // Tell the focus manager (if any) that root_view is being removed
+  // in case that the focused view is under this root view.
+  if (GetFocusManager())
+    GetFocusManager()->ViewRemoved(root_view_.get());
   FOR_EACH_OBSERVER(Observer, observers_, OnWidgetClosing(this));
   if (non_client_view_)
     non_client_view_->WindowClosing();