cc: Add command line switch to control resource usage for impl-side painting.

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"
@@ skipping 20 matching lines @@
 CC_EXPORT extern const char kTopControlsHeight[];
 CC_EXPORT extern const char kTopControlsHideThreshold[];
 CC_EXPORT extern const char kTopControlsShowThreshold[];
 CC_EXPORT extern const char kTraceAllRenderedFrames[];
 CC_EXPORT extern const char kSlowDownRasterScaleFactor[];
 CC_EXPORT extern const char kUseColorEstimator[];
 CC_EXPORT extern const char kLowResolutionContentsScaleFactor[];
 CC_EXPORT extern const char kCompositeToMailbox[];
 CC_EXPORT extern const char kMaxPrepaintTileDistance[];
 CC_EXPORT extern const char kMaxTilesForInterestArea[];
+CC_EXPORT extern const char kMaxUnusedResourceMemoryUsagePercentage[];
 
 // Switches for both the renderer and ui compositors.
 CC_EXPORT extern const char kEnablePartialSwap[];
 CC_EXPORT extern const char kUIEnablePartialSwap[];
 CC_EXPORT extern const char kEnablePerTilePainting[];
 CC_EXPORT extern const char kUIEnablePerTilePainting[];
 
 // Debug visualizations.
 CC_EXPORT extern const char kShowCompositedLayerBorders[];
 CC_EXPORT extern const char kUIShowCompositedLayerBorders[];
@@ skipping 13 matching lines @@
 CC_EXPORT extern const char kUIShowOccludingRects[];
 CC_EXPORT extern const char kShowNonOccludingRects[];
 CC_EXPORT extern const char kUIShowNonOccludingRects[];
 
 CC_EXPORT bool IsImplSidePaintingEnabled();
 
 }  // namespace switches
 }  // namespace cc
 
 #endif  // CC_BASE_SWITCHES_H_