Fix GrProgramsTest to not generate tests with too many TexCoord references

src/gpu/gl/GrGpuGL.h

Index: src/gpu/gl/GrGpuGL.h
diff --git a/src/gpu/gl/GrGpuGL.h b/src/gpu/gl/GrGpuGL.h
index 65e82077bc74eb3dbcc52dac47bb442131a9b283..5ff34aec2265510c30201cb7f6cd1edcb9ff91ff 100644
--- a/src/gpu/gl/GrGpuGL.h
+++ b/src/gpu/gl/GrGpuGL.h
@@ -50,6 +50,10 @@ public:
     void enableTexGen(int unitIdx, TexGenComponents, const GrGLfloat* coefficients);
     void enableTexGen(int unitIdx, TexGenComponents, const SkMatrix& matrix);
     void disableUnusedTexGen(int numUsedTexCoordSets);
+    bool shouldUseFixedFunctionTexturing() const {
+        return this->glCaps().fixedFunctionSupport() &&
+               this->glCaps().pathRenderingSupport();
+    }
 
     bool programUnitTest(int maxStages);