Replace tab switcher borders with single asset

chrome/browser/android/compositor/layer/tab_layer.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TAB_LAYER_H_
 #define CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TAB_LAYER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 68 matching lines @@
                      float border_scale,
                      float saturation,
                      float brightness,
                      float close_btn_width,
                      float static_to_view_blend,
                      float content_width,
                      float content_height,
                      float view_width,
                      float view_height,
                      bool show_toolbar,
+                     int default_theme_color,
                      int toolbar_background_color,
                      bool anonymize_toolbar,
                      int toolbar_textbox_resource_id,
                      int toolbar_textbox_background_color,
                      float toolbar_textbox_alpha,
                      float toolbar_alpha,
                      float toolbar_y_offset,
                      float side_border_scale,
                      bool attach_content,
                      bool inset_border);
@@ skipping 48 matching lines @@
   scoped_refptr<cc::UIResourceLayer> back_logo_;
   float brightness_;
 
   DISALLOW_COPY_AND_ASSIGN(TabLayer);
 };
 
 }  //  namespace android
 }  //  namespace chrome
 
 #endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TAB_LAYER_H_