Add DriveApiUrlGenerator.

chrome/browser/google_apis/drive_api_url_generator.h

Index: chrome/browser/google_apis/drive_api_url_generator.h
diff --git a/chrome/browser/google_apis/drive_api_url_generator.h b/chrome/browser/google_apis/drive_api_url_generator.h
new file mode 100644
index 0000000000000000000000000000000000000000..6c9b093dae8cd6c4b83012d964c079404b080843
--- /dev/null
+++ b/chrome/browser/google_apis/drive_api_url_generator.h
@@ -0,0 +1,51 @@
+// Copyright (c) 2013 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_GOOGLE_APIS_DRIVE_API_URL_GENERATOR_H_
+#define CHROME_BROWSER_GOOGLE_APIS_DRIVE_API_URL_GENERATOR_H_
+
+#include <string>
+
+#include "googleurl/src/gurl.h"
+
+namespace google_apis {
+
+// This class is used to generate URLs for communicating with drive api
+// servers for production, and a local server for testing.
+class DriveApiUrlGenerator {
+ public:
+  // TODO(hidehiko): Pass server name to a constructor in order to inject
+  // server path for testing.
+  DriveApiUrlGenerator();
+  ~DriveApiUrlGenerator();
+
+  // Returns a URL to fetch "about" data.
+  GURL GetAboutUrl() const;
+
+  // Returns a URL to fetch "applist" data.
+  GURL GetApplistUrl() const;
+
+  // Returns a URL to fetch a list of changes.
+  // override_url:
+  //   The base url for the fetch. If empty, the default url is used.
+  // start_changestamp:
+  //   The starting point of the requesting change list, or 0 if all changes
+  //   are necessary.
+  GURL GetChangelistUrl(
+      const GURL& override_url, int64 start_changestamp) const;
+
+  // Returns a URL to fetch a list of files with the given |search_string|.
+  // override_url:
+  //   The base url for the fetching. If empty, the default url is used.
+  // search_string: The search query.
+  GURL GetFilelistUrl(
+      const GURL& override_url, const std::string& search_string) const;
+
+  // Returns a URL to fecth a file content.
+  GURL GetFileUrl(const std::string& file_id) const;
+};
+
+}  // namespace google_apis
+
+#endif  // CHROME_BROWSER_GOOGLE_APIS_DRIVE_API_URL_GENERATOR_H_