Revert of Mandoline: Add WebGL support

gpu/command_buffer/build_gles2_cmd_buffer.py

Index: gpu/command_buffer/build_gles2_cmd_buffer.py
diff --git a/gpu/command_buffer/build_gles2_cmd_buffer.py b/gpu/command_buffer/build_gles2_cmd_buffer.py
index 00c64147934d13b49b7f540685b1b9cdc3f8609a..bde24e1bfb2215f2ec08bebef706dcb0aa8e1ce2 100755
--- a/gpu/command_buffer/build_gles2_cmd_buffer.py
+++ b/gpu/command_buffer/build_gles2_cmd_buffer.py
@@ -2201,7 +2201,6 @@
   'BlitFramebufferCHROMIUM': {
     'decoder_func': 'DoBlitFramebufferCHROMIUM',
     'unit_test': False,
-    'extension': 'chromium_framebuffer_multisample',
     'extension_flag': 'chromium_framebuffer_multisample',
     'pepper_interface': 'FramebufferBlit',
     'pepper_name': 'BlitFramebufferEXT',
@@ -3268,7 +3267,6 @@
     'gl_test_func': 'glRenderbufferStorageMultisampleCHROMIUM',
     'expectation': False,
     'unit_test': False,
-    'extension': 'chromium_framebuffer_multisample',
     'extension_flag': 'chromium_framebuffer_multisample',
     'pepper_interface': 'FramebufferMultisample',
     'pepper_name': 'RenderbufferStorageMultisampleEXT',
@@ -4876,8 +4874,7 @@
                   "CHROMIUM_sub_image", "CHROMIUM_miscellaneous",
                   "occlusion_query_EXT", "CHROMIUM_image",
                   "CHROMIUM_copy_texture",
-                  "CHROMIUM_pixel_transfer_buffer_object",
-                  "chromium_framebuffer_multisample"]
+                  "CHROMIUM_pixel_transfer_buffer_object"]
     if func.IsCoreGLFunction() or func.GetInfo("extension") in extensions:
       f.write("MojoGLES2MakeCurrent(context_);");
       func_return = "gl" + func.original_name + "(" + \
@@ -10459,7 +10456,6 @@
 
 #include "base/logging.h"
 #include "third_party/mojo/src/mojo/public/c/gles2/chromium_copy_texture.h"
-#include "third_party/mojo/src/mojo/public/c/gles2/chromium_framebuffer_multisample.h"
 #include "third_party/mojo/src/mojo/public/c/gles2/chromium_image.h"
 #include "third_party/mojo/src/mojo/public/c/gles2/chromium_miscellaneous.h"
 #include "third_party/mojo/src/mojo/public/c/gles2/chromium_pixel_transfer_buffer_object.h"
@@ -11034,9 +11030,6 @@
   gen.WriteMojoGLCallVisitorForExtension(
       mojo_gles2_prefix + "_chromium_pixel_transfer_buffer_object_autogen.h",
       "CHROMIUM_pixel_transfer_buffer_object")
-  gen.WriteMojoGLCallVisitorForExtension(
-      mojo_gles2_prefix + "_chromium_framebuffer_multisample_autogen.h",
-      "chromium_framebuffer_multisample")
 
   Format(gen.generated_cpp_filenames)