This CL moves the different resource handlers from resource_dispatcher_host.cc into their own files, into a new renderer_host directory.

Their is no functionality change in this CL.

The motivation for doing that was:
- resource_dispatcher_host.cc has become very long and more than 1/3 of the code is for the resource handler.
- having the resource handler in their own file allows having unit tests for them.

BUG=none
TEST=run all unit tests and UI tests.
Review URL: http://codereview.chromium.org/14487

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@7336 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 64 insertions, 0 deletions

diff --git a/chrome/browser/renderer_host/save_file_resource_handler.h b/chrome/browser/renderer_host/save_file_resource_handler.h
new file mode 100644
index 0000000..87f06ae
--- /dev/null
+++ b/chrome/browser/renderer_host/save_file_resource_handler.h
@@ -0,0 +1,64 @@
+// Copyright (c) 2006-2008 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.
+
+#ifndef CHROME_BROWSER_RENDERER_HOST_SAVE_FILE_RESOURCE_HANDLER_H_
+#define CHROME_BROWSER_RENDERER_HOST_SAVE_FILE_RESOURCE_HANDLER_H_
+
+#include <string>
+
+#include "chrome/browser/renderer_host/resource_handler.h"
+
+class SaveFileManager;
+
+// Forwards data to the save thread.
+class SaveFileResourceHandler : public ResourceHandler {
+ public:
+  SaveFileResourceHandler(int render_process_host_id,
+                          int render_view_id,
+                          const std::string& url,
+                          SaveFileManager* manager);
+
+  // Saves the redirected URL to final_url_, we need to use the original
+  // URL to match original request.
+  bool OnRequestRedirected(int request_id, const GURL& url);
+
+  // Sends the download creation information to the download thread.
+  bool OnResponseStarted(int request_id, ResourceResponse* response);
+
+  // Creates a new buffer, which will be handed to the download thread for file
+  // writing and deletion.
+  bool OnWillRead(int request_id, char** buf, int* buf_size, int min_size);
+
+  // Passes the buffer to the download file writer.
+  bool OnReadCompleted(int request_id, int* bytes_read);
+
+  bool OnResponseCompleted(int request_id, const URLRequestStatus& status);
+
+  // If the content-length header is not present (or contains something other
+  // than numbers), StringToInt64 returns 0, which indicates 'unknown size' and
+  // is handled correctly by the SaveManager.
+  void set_content_length(const std::string& content_length) {
+    content_length_ = StringToInt64(content_length);
+  }
+
+  void set_content_disposition(const std::string& content_disposition) {
+    content_disposition_ = content_disposition;
+  }
+
+ private:
+  int save_id_;
+  int render_process_id_;
+  int render_view_id_;
+  char* read_buffer_;
+  std::string content_disposition_;
+  std::wstring url_;
+  std::wstring final_url_;
+  int64 content_length_;
+  SaveFileManager* save_manager_;
+
+  static const int kReadBufSize = 32768;  // bytes
+
+  DISALLOW_COPY_AND_ASSIGN(SaveFileResourceHandler);
+};
+#endif  // CHROME_BROWSER_RENDERER_HOST_SAVE_FILE_RESOURCE_HANDLER_H_