This CL adds glTexStorage support.

src/gpu/GrTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTest.h"
 
 #include "GrBatchAtlas.h"
@@ skipping 269 matching lines @@
 
 #include "GrGpu.h"
 
 class GrPipeline;
 
 class MockCaps : public GrCaps {
 public:
     explicit MockCaps(const GrContextOptions& options) : INHERITED(options) {}
     bool isConfigTexturable(GrPixelConfig config) const override { return false; }
     bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override { return false; }
+    bool isConfigTexSupportEnabled(GrPixelConfig config) const override { return false; }
 private:
     typedef GrCaps INHERITED;
 };
 
 class MockGpu : public GrGpu {
 public:
     MockGpu(GrContext* context, const GrContextOptions& options) : INHERITED(context) {
         fCaps.reset(new MockCaps(options));
     }
     ~MockGpu() override {}
@@ skipping 116 matching lines @@
     SkASSERT(nullptr == fGpu);
     fGpu = new MockGpu(this, options);
     SkASSERT(fGpu);
     this->initCommon(options);
 
     // We delete these because we want to test the cache starting with zero resources. Also, none of
     // these objects are required for any of tests that use this context. TODO: make stop allocating
     // resources in the buffer pools.
     fDrawingManager->abandon();
 }