ash: Update launcher background to 0.8 black.

ash/launcher/overflow_bubble.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/launcher/overflow_bubble.h"
 
 #include <algorithm>
 
 #include "ash/launcher/launcher_types.h"
 #include "ash/launcher/launcher_view.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 
 namespace {
 
-// This should be the same color as the darkest launcher bar.
-const SkColor kLauncherColor = SkColorSetARGB(0x80, 0, 0, 0);
-
 // Max bubble size to screen size ratio.
 const float kMaxBubbleSizeToScreenRatio = 0.5f;
 
 // Inner padding in pixels for launcher view inside bubble.
 const int kPadding = 2;
 
 // Padding space in pixels between LauncherView's left/top edge to its contents.
 const int kLauncherViewLeadingInset = 8;
 
 // Gets arrow location based on shelf alignment.
@@ skipping 79 matching lines @@
   launcher_view_ = new LauncherView(model, delegate, NULL);
   launcher_view_->set_first_visible_index(overflow_start_index);
   launcher_view_->set_leading_inset(kLauncherViewLeadingInset);
   launcher_view_->Init();
   launcher_view_->SetAlignment(shelf_alignment);
   AddChildView(launcher_view_);
 
   set_anchor_view(anchor);
   set_arrow_location(GetBubbleArrowLocation(shelf_alignment));
   set_background(NULL);
-  set_color(kLauncherColor);
+  set_color(SkColorSetARGB(kLauncherBackgroundAlpha, 0, 0, 0));
   set_margins(gfx::Insets(kPadding, kPadding, kPadding, kPadding));
   set_move_with_anchor(true);
   views::BubbleDelegateView::CreateBubble(this);
 }
 
 void OverflowBubbleView::ScrollByXOffset(int x_offset) {
   const gfx::Rect visible_bounds(GetContentsBounds());
   const gfx::Size contents_size(GetContentsSize());
 
   int x = std::min(contents_size.width() - visible_bounds.width(),
@@ skipping 149 matching lines @@
   bubble_ = NULL;
 }
 
 void OverflowBubble::OnWidgetClosing(views::Widget* widget) {
   DCHECK(widget == bubble_->GetWidget());
   bubble_ = NULL;
 }
 
 }  // namespace internal
 }  // namespace ash