ServiceWorker: Use mojo's data pipe for respondWith(stream)

third_party/WebKit/Source/modules/fetch/FetchDataLoader.h

Index: third_party/WebKit/Source/modules/fetch/FetchDataLoader.h
diff --git a/third_party/WebKit/Source/modules/fetch/FetchDataLoader.h b/third_party/WebKit/Source/modules/fetch/FetchDataLoader.h
index e2b4d837d30932d7aaab7914f9d661ff6f6ee2a7..7a1e16f554092109e689271a2bee534ff725a958 100644
--- a/third_party/WebKit/Source/modules/fetch/FetchDataLoader.h
+++ b/third_party/WebKit/Source/modules/fetch/FetchDataLoader.h
@@ -8,6 +8,7 @@
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/streams/Stream.h"
 #include "modules/ModulesExport.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 #include "platform/blob/BlobData.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
@@ -35,17 +36,15 @@ class MODULES_EXPORT FetchDataLoader
 
     // The method corresponding to createLoaderAs... is called on success.
     virtual void didFetchDataLoadedBlobHandle(PassRefPtr<BlobDataHandle>) {
-      ASSERT_NOT_REACHED();
+      NOTREACHED();
     }
     virtual void didFetchDataLoadedArrayBuffer(DOMArrayBuffer*) {
-      ASSERT_NOT_REACHED();
-    }
-    virtual void didFetchDataLoadedString(const String&) {
-      ASSERT_NOT_REACHED();
+      NOTREACHED();
     }
+    virtual void didFetchDataLoadedString(const String&) { NOTREACHED(); }
     // This is called after all data are read from |handle| and written
-    // to |outStream|, and |outStream| is closed or aborted.
-    virtual void didFetchDataLoadedStream() { ASSERT_NOT_REACHED(); }
+    // to |outDataPipe|, and |outDataPipe| is closed or aborted.
+    virtual void didFetchDataLoadedDataPipe() { NOTREACHED(); }
 
     virtual void didFetchDataLoadFailed() = 0;
 
@@ -55,7 +54,8 @@ class MODULES_EXPORT FetchDataLoader
   static FetchDataLoader* createLoaderAsBlobHandle(const String& mimeType);
   static FetchDataLoader* createLoaderAsArrayBuffer();
   static FetchDataLoader* createLoaderAsString();
-  static FetchDataLoader* createLoaderAsStream(Stream* outStream);
+  static FetchDataLoader* createLoaderAsDataPipe(
+      mojo::ScopedDataPipeProducerHandle outDataPipe);
 
   virtual ~FetchDataLoader() {}