Add a command-line switch --enable-per-tile-painting.

chrome/browser/about_flags.cc

 // Copyright (c) 2011 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/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 136 matching lines @@
     SINGLE_VALUE_TYPE(switches::kForceCompositingMode)
   },
   {
     "composited-layer-borders",
     IDS_FLAGS_COMPOSITED_LAYER_BORDERS,
     IDS_FLAGS_COMPOSITED_LAYER_BORDERS_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kShowCompositedLayerBorders)
   },
   {
-    "accelerated-drawing",
-    IDS_FLAGS_ACCELERATED_DRAWING_NAME,
-    IDS_FLAGS_ACCELERATED_DRAWING_DESCRIPTION,
+    "accelerated-painting",
+    IDS_FLAGS_ACCELERATED_PAINTING_NAME,
+    IDS_FLAGS_ACCELERATED_PAINTING_DESCRIPTION,
 #if defined(USE_SKIA)
     kOsAll,
 #else
     0,
 #endif
-    SINGLE_VALUE_TYPE(switches::kEnableAcceleratedDrawing)
+    SINGLE_VALUE_TYPE(switches::kEnableAcceleratedPainting)
   },
   {
     "show-fps-counter",
     IDS_FLAGS_SHOW_FPS_COUNTER,
     IDS_FLAGS_SHOW_FPS_COUNTER_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kShowFPSCounter)
   },
   {
     "disable-gpu-vsync",
@@ skipping 274 matching lines @@
   // Aura laptop mode performance and feature set match traditional non-Aura
   // builds.
   {
     "aura-laptop-mode",
     IDS_FLAGS_AURA_LAPTOP_MODE_NAME,
     IDS_FLAGS_AURA_LAPTOP_MODE_DESCRIPTION,
     kOsWin | kOsLinux | kOsCrOS,
     SINGLE_VALUE_TYPE(switches::kAuraLaptopMode)
   },
 #endif
+  {
+    "per-tile-painting",
+    IDS_FLAGS_PER_TILE_PAINTING_NAME,
+    IDS_FLAGS_PER_TILE_PAINTING_DESCRIPTION,
+#if defined(USE_SKIA)
+    kOsAll,
+#else
+    0,
+#endif
+    SINGLE_VALUE_TYPE(switches::kEnablePerTilePainting)
+  },
 };
 
 const Experiment* experiments = kExperiments;
 size_t num_experiments = arraysize(kExperiments);
 
 // Stores and encapsulates the little state that about:flags has.
 class FlagsState {
  public:
   FlagsState() : needs_restart_(false) {}
   void ConvertFlagsToSwitches(PrefService* prefs, CommandLine* command_line);
@@ skipping 409 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags