Refactor ImageDecoder factories

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

Index: third_party/WebKit/Source/platform/graphics/DeferredImageDecoder.h
diff --git a/third_party/WebKit/Source/platform/graphics/DeferredImageDecoder.h b/third_party/WebKit/Source/platform/graphics/DeferredImageDecoder.h
index 34ffa5ac0a5142b65f95acd82492a48a7be13593..b2a8aea67fdf6a47341216ff4fea11297ee2bc45 100644
--- a/third_party/WebKit/Source/platform/graphics/DeferredImageDecoder.h
+++ b/third_party/WebKit/Source/platform/graphics/DeferredImageDecoder.h
@@ -47,7 +47,8 @@ class PLATFORM_EXPORT DeferredImageDecoder final {
     WTF_MAKE_NONCOPYABLE(DeferredImageDecoder);
     USING_FAST_MALLOC(DeferredImageDecoder);
 public:
-    static std::unique_ptr<DeferredImageDecoder> create(ImageDecoder::SniffResult, ImageDecoder::AlphaOption, ImageDecoder::GammaAndColorProfileOption);
+    static std::unique_ptr<DeferredImageDecoder> create(PassRefPtr<SharedBuffer> data, bool dataComplete,
+        ImageDecoder::AlphaOption, ImageDecoder::GammaAndColorProfileOption);
 
     static std::unique_ptr<DeferredImageDecoder> createForTesting(std::unique_ptr<ImageDecoder>);
 
@@ -58,7 +59,7 @@ public:
     PassRefPtr<SkImage> createFrameAtIndex(size_t);
 
     PassRefPtr<SharedBuffer> data();
-    void setData(SharedBuffer& data, bool allDataReceived);
+    void setData(PassRefPtr<SharedBuffer> data, bool allDataReceived);
 
     bool isSizeAvailable();
     bool hasColorProfile() const;
@@ -85,6 +86,8 @@ private:
 
     PassRefPtr<SkImage> createFrameImageAtIndex(size_t index, bool knownToBeOpaque);
 
+    void setDataInternal(PassRefPtr<SharedBuffer> data, bool allDataReceived, bool pushDataToDecoder);
+
     // Copy of the data that is passed in, used by deferred decoding.
     // Allows creating readonly snapshots that may be read in another thread.
     std::unique_ptr<SkRWBuffer> m_rwBuffer;