Revert "Revert 210138 "Perform glReadPixels with PBOs in the gpu, if PBO...""

gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h

Index: gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
diff --git a/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h b/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
index c2fab6aea9604e6671747032fcb49f299aac1cfb..573aee9d75633c762c58a648b30d686fa3c56bd7 100644
--- a/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
+++ b/gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h
@@ -228,7 +228,7 @@ static const GLES2Util::EnumToString enum_to_string_table[] = {
   { 0x84F5, "GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM", },
   { 0x882A, "GL_DRAW_BUFFER5_NV", },
   { 0x80AA, "GL_SAMPLE_COVERAGE_VALUE", },
-  { 0x84F6, "GL_TEXTURE_BINDING_RECTANGLE_ARB", },
+  { 0x84F6, "GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM", },
   { 0x80AB, "GL_SAMPLE_COVERAGE_INVERT", },
   { 0x8FC4, "GL_SHADER_BINARY_VIV", },
   { 0x882B, "GL_DRAW_BUFFER6_NV", },
@@ -1080,6 +1080,8 @@ std::string GLES2Util::GetStringQueryTarget(uint32 value) {
     { GL_LATENCY_QUERY_CHROMIUM, "GL_LATENCY_QUERY_CHROMIUM" },
     { GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM,
     "GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM" },
+    { GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM,
+    "GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM" },
   };
   return GLES2Util::GetQualifiedEnumString(
       string_table, arraysize(string_table), value);