Make max number of vertex attributes be checked dynamically

src/gpu/GrGpu.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrGpu.h"
 
@@ skipping 474 matching lines @@
     fMultisampleSpecsMap[effectiveKey] = &specs;
     if (effectiveSampleCnt != desc.fSampleCnt) {
         SkASSERT(surfDescKey < effectiveKey);
         fMultisampleSpecsMap[surfDescKey] = &specs;
     }
     return specs;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
-void GrGpu::draw(const GrPipeline& pipeline,
+bool GrGpu::draw(const GrPipeline& pipeline,
                  const GrPrimitiveProcessor& primProc,
                  const GrMesh* meshes,
                  int meshCount) {
+    if (primProc.numAttribs() > this->caps()->maxVertexAttributes()) {
+        return false;
+    }
     this->handleDirtyContext();
 
     this->onDraw(pipeline, primProc, meshes, meshCount);
+    return true;
 }