Revert of cc: Remove the --enable-partial-swap flag.

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 18 matching lines @@
 CC_EXPORT extern const char kJankInsteadOfCheckerboard[];
 CC_EXPORT extern const char kTopControlsHeight[];
 CC_EXPORT extern const char kTopControlsHideThreshold[];
 CC_EXPORT extern const char kTraceOverdraw[];
 CC_EXPORT extern const char kTopControlsShowThreshold[];
 CC_EXPORT extern const char kSlowDownRasterScaleFactor[];
 CC_EXPORT extern const char kCompositeToMailbox[];
 CC_EXPORT extern const char kMaxTilesForInterestArea[];
 CC_EXPORT extern const char kMaxUnusedResourceMemoryUsagePercentage[];
 CC_EXPORT extern const char kEnablePinchVirtualViewport[];
+CC_EXPORT extern const char kEnablePartialSwap[];
 CC_EXPORT extern const char kStrictLayerPropertyChangeChecking[];
 CC_EXPORT extern const char kEnableMapImage[];
 CC_EXPORT extern const char kDisableMapImage[];
 CC_EXPORT extern const char kDisable4444Textures[];
 CC_EXPORT extern const char kDisableCompositorTouchHitTesting[];
 
 // Switches for both the renderer and ui compositors.
 CC_EXPORT extern const char kUIDisablePartialSwap[];
 CC_EXPORT extern const char kEnablePerTilePainting[];
 CC_EXPORT extern const char kUIEnablePerTilePainting[];
@@ skipping 25 matching lines @@
 
 CC_EXPORT bool IsLCDTextEnabled();
 CC_EXPORT bool IsGpuRasterizationEnabled();
 CC_EXPORT bool IsImplSidePaintingEnabled();
 CC_EXPORT bool IsMapImageEnabled();
 
 }  // namespace switches
 }  // namespace cc
 
 #endif  // CC_BASE_SWITCHES_H_