Fix GrProgramsTest to not generate tests with too many TexCoord references

src/gpu/gl/GrGLShaderBuilder.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GrGLShaderBuilder.h"
 #include "gl/GrGLProgram.h"
 #include "gl/GrGLUniformHandle.h"
@@ skipping 925 matching lines @@
     : INHERITED(gpu, uniformManager, desc)
     , fNumTexCoordSets(0) {
 
     SkASSERT(!desc.getHeader().fHasVertexCode);
     SkASSERT(gpu->glCaps().fixedFunctionSupport());
     SkASSERT(gpu->glCaps().pathRenderingSupport());
     SkASSERT(GrGLProgramDesc::kAttribute_ColorInput != desc.getHeader().fColorInput);
     SkASSERT(GrGLProgramDesc::kAttribute_ColorInput != desc.getHeader().fCoverageInput);
 }
 
+int GrGLFragmentOnlyShaderBuilder::addTexCoordSets(int count) {
+    int firstFreeCoordSet = fNumTexCoordSets;
+    fNumTexCoordSets += count;
+    SkASSERT(gpu()->glCaps().maxFixedFunctionTextureCoords() >= fNumTexCoordSets);
+    return firstFreeCoordSet;
+}
+
 GrGLProgramEffects* GrGLFragmentOnlyShaderBuilder::createAndEmitEffects(
         const GrEffectStage* effectStages[],
         const EffectKey effectKeys[],
         int effectCnt,
         GrGLSLExpr<4>* inOutFSColor) {
 
     GrGLTexGenProgramEffectsBuilder texGenEffectsBuilder(this, effectCnt);
     this->INHERITED::createAndEmitEffects(&texGenEffectsBuilder,
                                           effectStages,
                                           effectKeys,
                                           effectCnt,
                                           inOutFSColor);
     return texGenEffectsBuilder.finish();
 }