Allow one-copy task tile worker pool to use compressed textures.

cc/base/switches.h

 // 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.
 
 // Defines all the "cc" command-line switches.
 
 #ifndef CC_BASE_SWITCHES_H_
 #define CC_BASE_SWITCHES_H_
 
 #include "cc/base/cc_export.h"
 
 // Since cc is used from the render process, anything that goes here also needs
 // to be added to render_process_host_impl.cc.
 
 namespace cc {
 namespace switches {
 
 // Switches for the renderer compositor only.
 CC_EXPORT extern const char kDisableThreadedAnimation[];
 CC_EXPORT extern const char kDisableCachedPictureRaster[];
 CC_EXPORT extern const char kDisableCompositedAntialiasing[];
 CC_EXPORT extern const char kDisableMainFrameBeforeActivation[];
 CC_EXPORT extern const char kEnableMainFrameBeforeActivation[];
 CC_EXPORT extern const char kTopControlsHideThreshold[];
 CC_EXPORT extern const char kTopControlsShowThreshold[];
 CC_EXPORT extern const char kSlowDownRasterScaleFactor[];
 CC_EXPORT extern const char kStrictLayerPropertyChangeChecking[];
 CC_EXPORT extern const char kEnablePropertyTreeVerification[];
+CC_EXPORT extern const char kEnableTileCompression[];
 
 // Switches for both the renderer and ui compositors.
 CC_EXPORT extern const char kEnableBeginFrameScheduling[];
 CC_EXPORT extern const char kEnableGpuBenchmarking[];
 CC_EXPORT extern const char kDisableCompositorPropertyTrees[];
 
 // Debug visualizations.
 CC_EXPORT extern const char kShowCompositedLayerBorders[];
 CC_EXPORT extern const char kUIShowCompositedLayerBorders[];
 CC_EXPORT extern const char kShowLayerAnimationBounds[];
 CC_EXPORT extern const char kUIShowLayerAnimationBounds[];
 CC_EXPORT extern const char kShowPropertyChangedRects[];
 CC_EXPORT extern const char kUIShowPropertyChangedRects[];
 CC_EXPORT extern const char kShowSurfaceDamageRects[];
 CC_EXPORT extern const char kUIShowSurfaceDamageRects[];
 CC_EXPORT extern const char kShowScreenSpaceRects[];
 CC_EXPORT extern const char kUIShowScreenSpaceRects[];
 CC_EXPORT extern const char kShowReplicaScreenSpaceRects[];
 CC_EXPORT extern const char kUIShowReplicaScreenSpaceRects[];
 
 // Unit test related.
 CC_EXPORT extern const char kCCLayerTreeTestNoTimeout[];
 CC_EXPORT extern const char kCCRebaselinePixeltests[];
 
 }  // namespace switches
 }  // namespace cc
 
 #endif  // CC_BASE_SWITCHES_H_