Make the focus, caret, and cursor highlights fade out.

chrome/browser/chromeos/ui/focus_ring_layer.cc

 // Copyright 2013 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 "chrome/browser/chromeos/ui/focus_ring_layer.h"
 
 #include "base/bind.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/compositor_animation_observer.h"
 #include "ui/compositor/layer.h"
@@ skipping 31 matching lines @@
   gfx::Rect layer_bounds = bounds;
   int inset = -(kShadowRadius + 2);
   layer_bounds.Inset(inset, inset, inset, inset);
   CreateOrUpdateLayer(root_window, "FocusRing", layer_bounds);
 }
 
 bool FocusRingLayer::CanAnimate() const {
   return compositor_ && compositor_->HasAnimationObserver(this);
 }
 
+void FocusRingLayer::SetOpacity(float opacity) {
+  layer()->SetOpacity(opacity);
+}
+
 void FocusRingLayer::CreateOrUpdateLayer(aura::Window* root_window,
                                          const char* layer_name,
                                          const gfx::Rect& bounds) {
   if (!layer_ || root_window != root_window_) {
     root_window_ = root_window;
     ui::Layer* root_layer = root_window->layer();
     layer_.reset(new ui::Layer(ui::LAYER_TEXTURED));
     layer_->set_name(layer_name);
     layer_->set_delegate(this);
     layer_->SetFillsBoundsOpaquely(false);
@@ skipping 60 matching lines @@
 }
 
 void FocusRingLayer::OnCompositingShuttingDown(ui::Compositor* compositor) {
   if (compositor == compositor_) {
     compositor->RemoveAnimationObserver(this);
     compositor_ = nullptr;
   }
 }
 
 }  // namespace chromeos