Tie multibuffers to URLs

media/blink/resource_multibuffer.cc

Index: media/blink/resource_multibuffer.cc
diff --git a/media/blink/resource_multibuffer.cc b/media/blink/resource_multibuffer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e42320fb4683c615eadf02c99c8d5d8da895c832
--- /dev/null
+++ b/media/blink/resource_multibuffer.cc
@@ -0,0 +1,35 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/blink/resource_multibuffer.h"
+
+#include "media/blink/resource_multibuffer_data_provider.h"
+
+namespace media {
+
+const int kBlockSizeShift = 15;  // 1<<15 == 32kb
+
+ResourceMultiBuffer::ResourceMultiBuffer(blink::WebFrame* frame)
+    : MultiBuffer(kBlockSizeShift), frame_(frame) {}
+ResourceMultiBuffer::~ResourceMultiBuffer() {}
+
+MultiBuffer::DataProvider* ResourceMultiBuffer::CreateWriter(
+    const MultiBufferBlockId& pos) {
+  ResourceMultiBufferDataProvider* ret =
+      new ResourceMultiBufferDataProvider(pos, this);
+  ret->Start();
+  return ret;
+}
+
+void ResourceMultiBuffer::OnRedirect(const scoped_refptr<UrlData>& from,
+                                     const scoped_refptr<UrlData>& to) {
+  UpdateUrlData(from, to);
+}
+
+void ResourceMultiBuffer::Fail(const scoped_refptr<UrlData>& from) {
+  // Or possibly just register a failure in the urldata class?
+  UpdateUrlData(from, kUnknownUrlData);
+}
+
+}  // namespace media