Rename omaha_client and similar tokens to update_client in all contexts.

extensions/shell/browser/shell_update_query_params_delegate.h

+// Copyright 2014 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 EXTENSIONS_SHELL_BROWSER_SHELL_UPDATE_QUERY_PARAMS_DELEGATE_H_
+#define EXTENSIONS_SHELL_BROWSER_SHELL_UPDATE_QUERY_PARAMS_DELEGATE_H_
+
+#include <string>
+
+#include "components/update_client/update_query_params_delegate.h"
+
+namespace extensions {
+
+class ShellUpdateQueryParamsDelegate
+    : public update_client::UpdateQueryParamsDelegate {
+ public:
+  ShellUpdateQueryParamsDelegate();
+  ~ShellUpdateQueryParamsDelegate() override;
+
+  std::string GetExtraParams() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellUpdateQueryParamsDelegate);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_SHELL_BROWSER_SHELL_UPDATE_QUERY_PARAMS_DELEGATE_H_