Simplify Image::isTextureBacked()

third_party/WebKit/Source/platform/graphics/StaticBitmapImage.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef StaticBitmapImage_h
 #define StaticBitmapImage_h
 
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/common/sync_token.h"
 #include "platform/graphics/Image.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 namespace blink {
 
 class WebGraphicsContext3DProvider;
 
 class PLATFORM_EXPORT StaticBitmapImage : public Image {
  public:
   static PassRefPtr<StaticBitmapImage> create(sk_sp<SkImage>);
 
   // Methods overrided by all sub-classes
   virtual ~StaticBitmapImage() {}
   bool currentFrameKnownToBeOpaque(MetadataMode = UseCurrentMetadata) = 0;
   sk_sp<SkImage> imageForCurrentFrame(const ColorBehavior&) = 0;
-  bool isTextureBacked() = 0;
   void draw(SkCanvas*,
             const SkPaint&,
             const FloatRect& dstRect,
             const FloatRect& srcRect,
             RespectImageOrientationEnum,
             ImageClampingMode,
             const ColorBehavior&) = 0;
 
   // Methods have common implementation for all sub-classes
   bool currentFrameIsComplete() override { return true; }
@@ skipping 43 matching lines @@
   // info. They applied to both UnacceleratedStaticBitmapImage and
   // AcceleratedStaticBitmapImage. To change these two properties, the call
   // site would have to call the API setOriginClean() and setPremultiplied().
   bool m_isOriginClean = true;
   bool m_isPremultiplied = true;
 };
 
 }  // namespace blink
 
 #endif