Switch back to the original brightness filter implementation.

ui/compositor/layer.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 "ui/compositor/layer.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 308 matching lines @@
   if (layer_grayscale_) {
     filters.append(WebKit::WebFilterOperation::createGrayscaleFilter(
         layer_grayscale_));
   }
   if (layer_inverted_)
     filters.append(WebKit::WebFilterOperation::createInvertFilter(1.0));
   // Brightness goes last, because the resulting colors neeed clamping, which
   // cause further color matrix filters to be applied separately. In this order,
   // they all can be combined in a single pass.
   if (layer_brightness_) {
-    filters.append(WebKit::WebFilterOperation::createBrightnessFilter(
+    filters.append(WebKit::WebFilterOperation::createSaturatingBrightnessFilter(
         layer_brightness_));
   }
 
   cc_layer_->setFilters(filters);
 }
 
 void Layer::SetLayerBackgroundFilters() {
   WebKit::WebFilterOperations filters;
   if (zoom_ != 1) {
     filters.append(WebKit::WebFilterOperation::createZoomFilter(
@@ skipping 460 matching lines @@
     gfx::PointF uv_bottom_right(
         static_cast<float>(size.width())/texture_size.width(),
         static_cast<float>(size.height())/texture_size.height());
     texture_layer_->setUV(uv_top_left, uv_bottom_right);
 
     cc_layer_->setBounds(ConvertSizeToPixel(this, size));
   }
 }
 
 }  // namespace ui