[ServiceWorker] Send the body of Request in fetch() API.

Source/modules/serviceworkers/FetchManager.cpp

Index: Source/modules/serviceworkers/FetchManager.cpp
diff --git a/Source/modules/serviceworkers/FetchManager.cpp b/Source/modules/serviceworkers/FetchManager.cpp
index 3cbd4b5bc3128793e454850f1b721520ea0ff00a..03f5c33f0ebc552b09ff19473ceb0039003967f4 100644
--- a/Source/modules/serviceworkers/FetchManager.cpp
+++ b/Source/modules/serviceworkers/FetchManager.cpp
@@ -258,6 +258,7 @@ void FetchManager::Loader::performNetworkError()
 
 void FetchManager::Loader::performHTTPFetch()
 {
+    ASSERT(m_request->url().protocolIsInHTTPFamily());
     // CORS preflight fetch procedure is implemented inside DocumentThreadableLoader.
 
     // "1. Let |HTTPRequest| be a copy of |request|, except that |HTTPRequest|'s
@@ -273,6 +274,15 @@ void FetchManager::Loader::performHTTPFetch()
         request.addHTTPHeaderField(AtomicString(list[i]->first), AtomicString(list[i]->second));
     }
 
+    if (m_request->method() != "GET" && m_request->method() != "HEAD") {
+        RefPtr<BlobDataHandle> blobDataHandle = m_request->blobDataHandle();
+        if (blobDataHandle.get()) {
+            RefPtr<FormData> httpBody(FormData::create());
+            httpBody->appendBlob(blobDataHandle->uuid(), blobDataHandle);
+            request.setHTTPBody(httpBody);
+        }
+    }
+
     // "2. Append `Referer`/empty byte sequence, if |HTTPRequest|'s |referrer|
     // is none, and `Referer`/|HTTPRequest|'s referrer, serialized and utf-8
     // encoded, otherwise, to HTTPRequest's header list.