Change CHROMIUM_image declarations to support multi planar input.

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 8dba53b8b830479ed5e1794de8d30d6e17c797dd..2bf63ea23ca73d4c39bd745388d2875e5732439a 100755
--- a/gpu/command_buffer/build_gles2_cmd_buffer.py
+++ b/gpu/command_buffer/build_gles2_cmd_buffer.py
@@ -1794,7 +1794,7 @@ _FUNCTION_INFO = {
   'CreateImageCHROMIUM': {
     'type': 'Manual',
     'cmd_args':
-        'ClientBuffer buffer, GLsizei width, GLsizei height, '
+        'ClientBuffer* buffers, GLsizei width, GLsizei height, '
         'GLenum internalformat',
     'result': ['GLuint'],
     'client_test': False,