Add the backchannel for Blobs to be received into Blink from the database backend.

public/platform/WebIDBCallbacks.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 14 matching lines @@
 
 #ifndef WebIDBCallbacks_h
 #define WebIDBCallbacks_h
 
 #include "WebCommon.h"
 #include "WebString.h"
 #include "WebVector.h"
 
 namespace blink {
 
+class WebBlobInfo;
 class WebData;
 class WebIDBCursor;
 class WebIDBDatabase;
 class WebIDBDatabaseError;
 class WebIDBIndex;
 class WebIDBKey;
 class WebIDBKeyPath;
 struct WebIDBMetadata;
 
 class WebIDBCallbacks {
 public:
     virtual ~WebIDBCallbacks() { }
 
     // Pointers transfer ownership.
     virtual void onError(const WebIDBDatabaseError&) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onSuccess(const WebVector<WebString>&) { BLINK_ASSERT_NOT_REACHED(); }
+    // TODO(ericu): Remove this version, here only for the 3-side patch dance.
     virtual void onSuccess(WebIDBCursor*, const WebIDBKey&, const WebIDBKey& primaryKey, const WebData&) { BLINK_ASSERT_NOT_REACHED(); }
+    virtual void onSuccess(WebIDBCursor*, const WebIDBKey&, const WebIDBKey& primaryKey, const WebData&, const WebVector<WebBlobInfo>&) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onSuccess(WebIDBDatabase*, const WebIDBMetadata&) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onSuccess(const WebIDBKey&) { BLINK_ASSERT_NOT_REACHED(); }
+    // TODO(ericu): Remove this version, here only for the 3-side patch dance.
     virtual void onSuccess(const WebData&) { BLINK_ASSERT_NOT_REACHED(); }
+    virtual void onSuccess(const WebData&, const WebVector<WebBlobInfo>&) { BLINK_ASSERT_NOT_REACHED(); }
+    // TODO(ericu): Remove this version, here only for the 3-side patch dance.
     virtual void onSuccess(const WebData&, const WebIDBKey&, const WebIDBKeyPath&) { BLINK_ASSERT_NOT_REACHED(); }
+    virtual void onSuccess(const WebData&, const WebVector<WebBlobInfo>&, const WebIDBKey&, const WebIDBKeyPath&) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onSuccess(long long) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onSuccess() { BLINK_ASSERT_NOT_REACHED(); }
+    // TODO(ericu): Remove this version, here only for the 3-side patch dance.
     virtual void onSuccess(const WebIDBKey&, const WebIDBKey& primaryKey, const WebData&) { BLINK_ASSERT_NOT_REACHED(); }
+    virtual void onSuccess(const WebIDBKey&, const WebIDBKey& primaryKey, const WebData&, const WebVector<WebBlobInfo>&) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onBlocked(long long oldVersion) { BLINK_ASSERT_NOT_REACHED(); }
     virtual void onUpgradeNeeded(long long oldVersion, WebIDBDatabase*, const WebIDBMetadata&, unsigned short dataLoss, WebString dataLossMessage) { BLINK_ASSERT_NOT_REACHED(); }
 };
 
 } // namespace blink
 
 #endif // WebIDBCallbacks_h