Separate out natively-texture image/bmp draws from cached-as-texture image/bmp draws

src/gpu/GrImageIDTextureAdjuster.h

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrImageIDTextureAdjuster_DEFINED
+#define GrImageIDTextureAdjuster_DEFINED
+
+#include "GrTextureParamsAdjuster.h"
+
+class SkBitmap;
+class SkImage_Base;
+
+/** Implementation for texture-backed SkBitmaps. The bitmap must stay in scope and unmodified 
+    while this object exists. */
+class GrBitmapTextureAdjuster : public GrTextureAdjuster {
+public:
+    explicit GrBitmapTextureAdjuster(const SkBitmap* bmp);
+
+private:
+    void makeCopyKey(const CopyParams& params, GrUniqueKey* copyKey) override;
+
+    void didCacheCopy(const GrUniqueKey& copyKey) override;
+
+    const SkBitmap* fBmp;
+
+    typedef GrTextureAdjuster INHERITED;
+};
+
+/** Implementation for texture-backed SkImages. The image must stay in scope and unmodified while
+    this object exists. */
+class GrImageTextureAdjuster : public GrTextureAdjuster {
+public:
+    explicit GrImageTextureAdjuster(const SkImage_Base* img);
+
+private:
+    void makeCopyKey(const CopyParams& params, GrUniqueKey* copyKey) override;
+
+    void didCacheCopy(const GrUniqueKey& copyKey) override;
+
+    const SkImage_Base* fImageBase;
+
+    typedef GrTextureAdjuster INHERITED;
+};
+
+#endif