Remove min texture size support

src/core/SkImageCacherator.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkBitmapCache.h"
 #include "SkImage_Base.h"
@@ skipping 269 matching lines @@
         , fCacher(cacher)
         , fClient(client)
     {
         if (client) {
             GrMakeKeyFromImageID(&fOriginalKey, client->uniqueID(),
                                  SkIRect::MakeWH(this->width(), this->height()));
         }
     }
 
 protected:
-    GrTexture* peekOriginalTexture() override { return nullptr; }
-
     // TODO: consider overriding this, for the case where the underlying generator might be
     //       able to efficiently produce a "stretched" texture natively (e.g. picture-backed)
     //    GrTexture* generateTextureForParams(GrContext*, const SkGrStretch&) override;
 
     GrTexture* refOriginalTexture(GrContext* ctx) override {
         return fCacher->lockTexture(ctx, fOriginalKey, fClient);
     }
 
     void makeCopyKey(const CopyParams& stretch, GrUniqueKey* paramsCopyKey) override {
         if (fOriginalKey.isValid()) {
             MakeCopyKeyFromOrigKey(fOriginalKey, stretch, paramsCopyKey);
         }
     }
 
     void didCacheCopy(const GrUniqueKey& copyKey) override {
         if (fClient) {
             as_IB(fClient)->notifyAddedToCache();
         }
     }
 
-    bool getROBitmap(SkBitmap* bitmap) override {
-        return fCacher->lockAsBitmap(bitmap, fClient);
-    }
-
 private:
     SkImageCacherator*      fCacher;
     const SkImage*          fClient;
     GrUniqueKey             fOriginalKey;
 
     typedef GrTextureParamsAdjuster INHERITED;
 };
 
 GrTexture* SkImageCacherator::lockAsTexture(GrContext* ctx, const GrTextureParams& params,
                                             const SkImage* client) {
     if (!ctx) {
         return nullptr;
     }
 
     return Cacherator_GrTextureParamsAdjuster(this, client).refTextureForParams(ctx, params);
 }
 
 #else
 
 GrTexture* SkImageCacherator::lockAsTexture(GrContext* ctx, const GrTextureParams&,
                                             const SkImage* client) {
     return nullptr;
 }
 
 #endif