Temporarily introduce ImageResourceInfo::setIsPlaceholder()

third_party/WebKit/Source/core/loader/resource/ImageResourceContent.cpp

 // Copyright 2016 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.
 
 #include "core/loader/resource/ImageResourceContent.h"
 
 #include "core/loader/resource/ImageResource.h"
 #include "core/loader/resource/ImageResourceInfo.h"
 #include "core/loader/resource/ImageResourceObserver.h"
 #include "core/svg/graphics/SVGImage.h"
@@ skipping 36 matching lines @@
   bool isAccessAllowed(
       SecurityOrigin*,
       DoesCurrentFrameHaveSingleSecurityOrigin) const override {
     return true;
   }
   bool hasCacheControlNoStoreHeader() const override { return false; }
   const ResourceError& resourceError() const override { return m_error; }
 
   void decodeError(bool allDataReceived) override {}
   void setDecodedSize(size_t) override {}
+  void setIsPlaceholder(bool) override {}
   void willAddClientOrObserver() override {}
   void didRemoveClientOrObserver() override {}
   void emulateLoadStartedForInspector(
       ResourceFetcher*,
       const KURL&,
       const AtomicString& initiatorName) override {}
 
   const KURL m_url;
   const ResourceResponse m_response;
   const ResourceError m_error;
@@ skipping 411 matching lines @@
 
 const ResourceResponse& ImageResourceContent::response() const {
   return m_info->response();
 }
 
 const ResourceError& ImageResourceContent::resourceError() const {
   return m_info->resourceError();
 }
 
 }  // namespace blink