Stop dispatching notifyFinished for each part in a multipart response

third_party/WebKit/Source/core/fetch/ImageResource.h

Index: third_party/WebKit/Source/core/fetch/ImageResource.h
diff --git a/third_party/WebKit/Source/core/fetch/ImageResource.h b/third_party/WebKit/Source/core/fetch/ImageResource.h
index 8baf98c6941a7a27c0017233b7d3eb11e27bd570..514f82ceca83a5f15b6048a734cb67ad5534f2e2 100644
--- a/third_party/WebKit/Source/core/fetch/ImageResource.h
+++ b/third_party/WebKit/Source/core/fetch/ImageResource.h
@@ -118,7 +118,7 @@ public:
     void changedInRect(const blink::Image*, const IntRect&) override;
 
     // MultipartImageResourceParser::Client
-    void onePartInMultipartReceived(const ResourceResponse&, bool isFirstPart) final;
+    void onePartInMultipartReceived(const ResourceResponse&) final;
     void multipartDataReceived(const char*, size_t) final;
 
     DECLARE_VIRTUAL_TRACE();
@@ -157,6 +157,7 @@ private:
 
     PersistentWillBeMember<MultipartImageResourceParser> m_multipartParser;
     RefPtr<blink::Image> m_image;
+    int m_numParsedPartsInMultipart = 0;

[Nate Chapin, 2016/03/15 21:31:12]

Maybe this should be a state machine enum, since we don't care once we reach 2?
e.g.

enum MultipartResponseState {
    WaitingForResponse,
    FirstPartReceived,
    PayloadReceived
};

     bool m_hasDevicePixelRatioHeaderValue;
 };