Introduce App Launcher for Windows.

ui/app_list/app_list_view.cc

Index: ui/app_list/app_list_view.cc
diff --git a/ui/app_list/app_list_view.cc b/ui/app_list/app_list_view.cc
index d1c0b43f19dd974317d69977e5079aeddbb85b3d..2212c5103bc4f851aab0a189511cb298786f7c37 100644
--- a/ui/app_list/app_list_view.cc
+++ b/ui/app_list/app_list_view.cc
@@ -51,8 +51,14 @@ void AppListView::InitAsBubble(
     gfx::NativeView parent,
     PaginationModel* pagination_model,
     views::View* anchor,
+    const gfx::Point& anchor_point,
     views::BubbleBorder::ArrowLocation arrow_location) {
+#if defined(OS_WIN)
+  set_background(views::Background::CreateSolidBackground(
+      AppListBubbleBorder::ContentsBackgroundColor()));
+#else
   set_background(NULL);
+#endif
 
   SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
                                         kInnerPadding,
@@ -68,6 +74,7 @@ void AppListView::InitAsBubble(
   search_box_view_->set_contents_view(contents_view_);
 
   set_anchor_view(anchor);
+  set_anchor_point(anchor_point);
   set_margins(gfx::Insets());
   set_move_with_anchor(true);
   set_parent_window(parent);
@@ -81,8 +88,10 @@ void AppListView::InitAsBubble(
   GetBubbleFrameView()->SetBubbleBorder(bubble_border_);
   SetBubbleArrowLocation(arrow_location);
 
+#if !defined(OS_WIN)
   // Resets default background since AppListBubbleBorder paints background.
   GetBubbleFrameView()->set_background(NULL);
+#endif
 
   CreateModel();
 }
@@ -122,6 +131,13 @@ views::View* AppListView::GetInitiallyFocusedView() {
   return search_box_view_->search_box();
 }
 
+gfx::ImageSkia AppListView::GetWindowAppIcon() {
+  if (delegate_.get())
+    return delegate_->GetWindowAppIcon();
+
+  return gfx::ImageSkia();
+}
+
 bool AppListView::HasHitTestMask() const {
   return true;
 }