Add support for all blendmodes if we have GL_KHR_blend_equation_advanced.

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 71e3c82c6656e8c3cb819ac0382ffc6ae7955c3c..392bb22f8e2bcdb405cbb6768403df59e8308ef2 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -958,6 +958,9 @@ void GLES2MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) {
 void GLES2MatrixLoadIdentityCHROMIUM(GLenum matrixMode) {
   gles2::GetGLContext()->MatrixLoadIdentityCHROMIUM(matrixMode);
 }
+void GLES2BlendBarrierKHR() {
+  gles2::GetGLContext()->BlendBarrierKHR();
+}
 
 namespace gles2 {
 
@@ -1817,6 +1820,10 @@ extern const NameToFunc g_gles2_function_table[] = {
      reinterpret_cast<GLES2FunctionPointer>(glMatrixLoadIdentityCHROMIUM),
     },
     {
+     "glBlendBarrierKHR",
+     reinterpret_cast<GLES2FunctionPointer>(glBlendBarrierKHR),
+    },
+    {
      NULL,
      NULL,
     },