Remove validation of blend barrier until Chrome can provide this function

src/gpu/gl/GrGLInterface.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "gl/GrGLInterface.h"
 #include "gl/GrGLExtensions.h"
@@ skipping 307 matching lines @@
             if (NULL == fFunctions.fTextureBarrier) {
                 RETURN_FALSE_INTERFACE
             }
         }
     } else if (fExtensions.has("GL_NV_texture_barrier")) {
         if (NULL == fFunctions.fTextureBarrier) {
             RETURN_FALSE_INTERFACE
         }
     }
 
+// FIXME: Remove this once Chromium is updated to provide this function
+#if 0
     if (fExtensions.has("GL_KHR_blend_equation_advanced") ||
         fExtensions.has("GL_NV_blend_equation_advanced")) {
         if (NULL == fFunctions.fBlendBarrier) {
             RETURN_FALSE_INTERFACE
         }
     }
+#endif
 
     if (fExtensions.has("GL_EXT_discard_framebuffer")) {
 // FIXME: Remove this once Chromium is updated to provide this function
 #if 0
         if (NULL == fFunctions.fDiscardFramebuffer) {
             RETURN_FALSE_INTERFACE
         }
 #endif
     }
 
@@ skipping 188 matching lines @@
     }
 
     if (fExtensions.has("GL_NV_framebuffer_mixed_samples")) {
         if (NULL == fFunctions.fCoverageModulation) {
             RETURN_FALSE_INTERFACE
         }
     }
 
     return true;
 }