Enable keyboard navigation for Desktopcapture window selection dialog

chrome/browser/ui/views/desktop_media_picker_views.cc

Index: chrome/browser/ui/views/desktop_media_picker_views.cc
diff --git a/chrome/browser/ui/views/desktop_media_picker_views.cc b/chrome/browser/ui/views/desktop_media_picker_views.cc
index b2975b2b2309b25d1a1208e10f30ccd1bbb3a35c..9ed27baf80fd0ef73dc24e64bcdfa247b0226c33 100644
--- a/chrome/browser/ui/views/desktop_media_picker_views.cc
+++ b/chrome/browser/ui/views/desktop_media_picker_views.cc
@@ -206,6 +206,7 @@ DesktopMediaListView::DesktopMediaListView(
       media_list_(media_list.Pass()),
       weak_factory_(this) {
   media_list_->SetThumbnailSize(gfx::Size(kThumbnailWidth, kThumbnailHeight));
+  SetFocusable(true);
 }
 
 DesktopMediaListView::~DesktopMediaListView() {}
@@ -443,6 +444,10 @@ DesktopMediaPickerDialogView::DesktopMediaPickerDialogView(
   }
 
   list_view_->StartUpdating(dialog_window_id);
+
+  views::View* initView = GetInitiallyFocusedView();

[Peter Kasting, 2015/09/24 04:10:25]

This block is still here.  Why is it not removed?

[gyzhou, 2015/10/02 18:51:26]

Done.

+  if (initView)
+    initView->RequestFocus();
 }
 
 DesktopMediaPickerDialogView::~DesktopMediaPickerDialogView() {}
@@ -480,6 +485,10 @@ void DesktopMediaPickerDialogView::Layout() {
       rect.width(), rect.height() - scroll_view_top);
 }
 
+views::View* DesktopMediaPickerDialogView::GetInitiallyFocusedView(){
+  return list_view_;
+}
+
 ui::ModalType DesktopMediaPickerDialogView::GetModalType() const {
   return ui::MODAL_TYPE_CHILD;
 }