Restructure flushing relationship between GrContext, GrDrawingManager, and GrResourceCache.

src/gpu/SkGpuDevice.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 "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 993 matching lines @@
              bitmap.height() <= fContext->caps()->maxTextureSize());
     // We should be respecting the max tile size by the time we get here.
     SkASSERT(bitmap.width() <= fContext->caps()->maxTileSize() &&
              bitmap.height() <= fContext->caps()->maxTileSize());
 
     sk_sp<GrTexture> texture = GrMakeCachedBitmapTexture(fContext, bitmap, params,
                                                          fDrawContext->sourceGammaTreatment());
     if (nullptr == texture) {
         return;
     }
-
     sk_sp<GrColorSpaceXform> colorSpaceXform =
         GrColorSpaceXform::Make(bitmap.colorSpace(), fDrawContext->getColorSpace());
 
     SkScalar iw = 1.f / texture->width();
     SkScalar ih = 1.f / texture->height();
 
     SkMatrix texMatrix;
     // Compute a matrix that maps the rect we will draw to the src rect.
     texMatrix.setRectToRect(dstRect, srcRect, SkMatrix::kStart_ScaleToFit);
     texMatrix.postScale(iw, ih);
@@ skipping 772 matching lines @@
 }
 
 SkImageFilterCache* SkGpuDevice::getImageFilterCache() {
     ASSERT_SINGLE_OWNER
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilterCache::Create(kDefaultImageFilterCacheSize);
 }
 
 #endif