gpu: introduce glCopySubTextureCHROMIUM

gpu/command_buffer/client/gles2_c_lib_autogen.h

Index: gpu/command_buffer/client/gles2_c_lib_autogen.h
diff --git a/gpu/command_buffer/client/gles2_c_lib_autogen.h b/gpu/command_buffer/client/gles2_c_lib_autogen.h
index 597ab2e871ef3cbec296b75a0af25bff50cfce3b..d6ccbf90f2f00a968adf1d8b6a44010539e09683 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -1054,6 +1054,15 @@ void GLES2CopyTextureCHROMIUM(GLenum target,
   gles2::GetGLContext()->CopyTextureCHROMIUM(target, source_id, dest_id, level,
                                              internalformat, dest_type);
 }
+void GLES2CopySubTextureCHROMIUM(GLenum target,
+                                 GLenum source_id,
+                                 GLenum dest_id,
+                                 GLint level,
+                                 GLint xoffset,
+                                 GLint yoffset) {
+  gles2::GetGLContext()->CopySubTextureCHROMIUM(target, source_id, dest_id,
+                                                level, xoffset, yoffset);
+}
 void GLES2DrawArraysInstancedANGLE(GLenum mode,
                                    GLint first,
                                    GLsizei count,
@@ -2170,6 +2179,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glCopyTextureCHROMIUM),
     },
     {
+     "glCopySubTextureCHROMIUM",
+     reinterpret_cast<GLES2FunctionPointer>(glCopySubTextureCHROMIUM),
+    },
+    {
      "glDrawArraysInstancedANGLE",
      reinterpret_cast<GLES2FunctionPointer>(glDrawArraysInstancedANGLE),
     },