Add a flag to disable partial raster in renderer

content/browser/gpu/compositor_util.cc

Index: content/browser/gpu/compositor_util.cc
diff --git a/content/browser/gpu/compositor_util.cc b/content/browser/gpu/compositor_util.cc
index 216d1da24b6c3facb393e0787fe4f765132f16d9..c6aabfbed098d33813801d76df8ff902d30839e5 100644
--- a/content/browser/gpu/compositor_util.cc
+++ b/content/browser/gpu/compositor_util.cc
@@ -208,12 +208,12 @@ bool IsZeroCopyUploadEnabled() {
 #endif
 }
 
-bool IsPersistentGpuMemoryBufferEnabled() {
-  // Zero copy currently doesn't take advantage of persistent buffers.
+bool IsPartialRasterEnabled() {
+  // Zero copy currently doesn't take advantage of partial raster.
   if (IsZeroCopyUploadEnabled())
     return false;
   const auto& command_line = *base::CommandLine::ForCurrentProcess();
-  return command_line.HasSwitch(switches::kEnablePersistentGpuMemoryBuffer);
+  return command_line.HasSwitch(switches::kEnablePartialRaster);
 }
 
 bool IsGpuRasterizationEnabled() {