command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/common/gles2_cmd_format.h

Index: gpu/command_buffer/common/gles2_cmd_format.h
diff --git a/gpu/command_buffer/common/gles2_cmd_format.h b/gpu/command_buffer/common/gles2_cmd_format.h
index 393303ec5c36ad1d288b10eeb96849519dfc37d6..f3f1cedaf0a491948ade17948322328fa0b66e95 100644
--- a/gpu/command_buffer/common/gles2_cmd_format.h
+++ b/gpu/command_buffer/common/gles2_cmd_format.h
@@ -62,12 +62,15 @@ enum IdNamespaces {
   kNumIdNamespaces
 };
 
+enum RangeIdNamespaces { kPaths, kNumRangeIdNamespaces };
+
 // These numbers must not change
 COMPILE_ASSERT(kBuffers == 0, kBuffers_is_not_0);
 COMPILE_ASSERT(kFramebuffers == 1, kFramebuffers_is_not_1);
 COMPILE_ASSERT(kProgramsAndShaders == 2, kProgramsAndShaders_is_not_2);
 COMPILE_ASSERT(kRenderbuffers == 3, kRenderbuffers_is_not_3);
 COMPILE_ASSERT(kTextures == 4, kTextures_is_not_4);
+COMPILE_ASSERT(kPaths == 0, kPaths_is_not_0);
 
 }  // namespace id_namespaces