Add a flag to disable partial raster in renderer

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index ace71571ac71d24f1b30d8f3157b009a48c1ebae..4006d30457a6193a9998b72124eefe6c03919702 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -204,10 +204,6 @@ const char kDisablePepper3d[]               = "disable-pepper-3d";
 // Disables the Permissions API.
 const char kDisablePermissionsAPI[]         = "disable-permissions-api";
 
-// Disables the use of persistent GPU memory buffers for partial raster.
-const char kDisablePersistentGpuMemoryBuffer[] =
-    "disable-persistent-gpu-memory-buffer";
-
 // Disables compositor-accelerated touch-screen pinch gestures.
 const char kDisablePinch[]                  = "disable-pinch";
 
@@ -373,9 +369,9 @@ const char kEnableMemoryBenchmarking[]      = "enable-memory-benchmarking";
 // Enables the network information API.
 const char kEnableNetworkInformation[]      = "enable-network-information";
 
-// Enables the use of persistent GPU memory buffers for partial raster.
-const char kEnablePersistentGpuMemoryBuffer[] =
-    "enable-persistent-gpu-memory-buffer";
+// Enables partial raster. Enabling this switch also enables the use of
+// persistent gpu memory buffers.
+const char kEnablePartialRaster[] = "enable-partial-raster";
 
 // Enables compositor-accelerated touch-screen pinch gestures.
 const char kEnablePinch[]                   = "enable-pinch";