Support sending BlobData to browser process. Also support sending UploadData...

chrome/browser/renderer_host/blob_dispatcher_host.cc

+// Copyright (c) 2010 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 "chrome/browser/renderer_host/blob_dispatcher_host.h"
+
+#include "chrome/browser/chrome_blob_storage_context.h"
+#include "chrome/browser/chrome_thread.h"
+#include "chrome/common/render_messages.h"
+#include "googleurl/src/gurl.h"
+#include "ipc/ipc_message.h"
+#include "webkit/blob/blob_data.h"
+#include "webkit/blob/blob_storage_controller.h"
+
+BlobDispatcherHost::BlobDispatcherHost(
+    ChromeBlobStorageContext* blob_storage_context)
+    : blob_storage_context_(blob_storage_context) {
+}
+
+BlobDispatcherHost::~BlobDispatcherHost() {
+}
+
+void BlobDispatcherHost::Shutdown() {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+
+  // Unregister all the blob URLs that are previously registered in this
+  // process.
+  for (base::hash_set<std::string>::const_iterator iter = blob_urls_.begin();
+       iter != blob_urls_.end(); ++iter) {
+    blob_storage_context_->controller()->UnregisterBlobUrl(GURL(*iter));
+  }
+}
+
+bool BlobDispatcherHost::OnMessageReceived(const IPC::Message& message,
+                                           bool* msg_is_ok) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+
+  *msg_is_ok = true;
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(BlobDispatcherHost, message, *msg_is_ok)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_RegisterBlobUrl, OnRegisterBlobUrl)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_RegisterBlobUrlFrom, OnRegisterBlobUrlFrom)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_UnregisterBlobUrl, OnUnregisterBlobUrl)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void BlobDispatcherHost::OnRegisterBlobUrl(
+    const GURL& url, const scoped_refptr<webkit_blob::BlobData>& blob_data) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+  blob_storage_context_->controller()->RegisterBlobUrl(url, blob_data);
+  blob_urls_.insert(url.spec());
+}
+
+void BlobDispatcherHost::OnRegisterBlobUrlFrom(
+    const GURL& url, const GURL& src_url) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+  blob_storage_context_->controller()->RegisterBlobUrlFrom(url, src_url);
+  blob_urls_.insert(src_url.spec());
+}
+
+void BlobDispatcherHost::OnUnregisterBlobUrl(const GURL& url) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+  blob_storage_context_->controller()->UnregisterBlobUrl(url);
+  blob_urls_.erase(url.spec());
+}