Add initial support for NV_path_rendering extension to gpu command buffer

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 6aab61ecdf09aa8801aa7616f2c8dd7bbcc119cd..54dfc316b13577994fbf4a03f140980348c40ee4 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -904,6 +904,11 @@ void GLES2DrawBuffersEXT(GLsizei count, const GLenum* bufs) {
 void GLES2DiscardBackbufferCHROMIUM() {
   gles2::GetGLContext()->DiscardBackbufferCHROMIUM();
 }
+void GLES2MatrixMode(GLenum mode) { gles2::GetGLContext()->MatrixMode(mode); }
+void GLES2LoadMatrixf(const GLfloat* m) {
+  gles2::GetGLContext()->LoadMatrixf(m);
+}
+void GLES2LoadIdentity() { gles2::GetGLContext()->LoadIdentity(); }
 
 namespace gles2 {
 
@@ -1277,6 +1282,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glDrawBuffersEXT), },
     {"glDiscardBackbufferCHROMIUM",
      reinterpret_cast<GLES2FunctionPointer>(glDiscardBackbufferCHROMIUM), },
+    {"glMatrixMode", reinterpret_cast<GLES2FunctionPointer>(glMatrixMode), },
+    {"glLoadMatrixf", reinterpret_cast<GLES2FunctionPointer>(glLoadMatrixf), },
+    {"glLoadIdentity",
+     reinterpret_cast<GLES2FunctionPointer>(glLoadIdentity), },
     {NULL, NULL, }, };
 
 }  // namespace gles2