Revert of [ash-md] Fades overview header in and out

ash/common/frame/header_view.cc

 // Copyright 2016 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/common/frame/header_view.h"
 
 #include "ash/common/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/common/frame/default_header_painter.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 76 matching lines @@
   caption_button_container_->ResetWindowControls();
   caption_button_container_->UpdateSizeButtonVisibility();
   Layout();
 }
 
 void HeaderView::SetFrameColors(SkColor active_frame_color,
                                 SkColor inactive_frame_color) {
   header_painter_->SetFrameColors(active_frame_color, inactive_frame_color);
 }
 
-SkColor HeaderView::GetActiveFrameColor() const {
-  return header_painter_->GetActiveFrameColor();
-}
-
-SkColor HeaderView::GetInactiveFrameColor() const {
-  return header_painter_->GetInactiveFrameColor();
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 // HeaderView, views::View overrides:
 
 void HeaderView::Layout() {
   header_painter_->LayoutHeader();
 }
 
 void HeaderView::OnPaint(gfx::Canvas* canvas) {
   bool paint_as_active =
       target_widget_->non_client_view()->frame_view()->ShouldPaintAsActive();
@@ skipping 77 matching lines @@
   gfx::Rect visible_bounds(GetVisibleBounds());
   gfx::Point visible_origin_in_screen(visible_bounds.origin());
   views::View::ConvertPointToScreen(this, &visible_origin_in_screen);
   std::vector<gfx::Rect> bounds_in_screen;
   bounds_in_screen.push_back(
       gfx::Rect(visible_origin_in_screen, visible_bounds.size()));
   return bounds_in_screen;
 }
 
 }  // namespace ash