Upon execution of the App Host, ask Omaha to install the Chrome Binaries if they are not present on…

chrome/browser/extensions/app_host/binaries_installer.h

Index: chrome/browser/extensions/app_host/binaries_installer.h
diff --git a/chrome/browser/extensions/app_host/binaries_installer.h b/chrome/browser/extensions/app_host/binaries_installer.h
new file mode 100644
index 0000000000000000000000000000000000000000..7d6ff198859a31088a9384ce3601bb109af71b94
--- /dev/null
+++ b/chrome/browser/extensions/app_host/binaries_installer.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2012 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_EXTENSIONS_APP_HOST_BINARIES_INSTALLER_H_
+#define CHROME_BROWSER_EXTENSIONS_APP_HOST_BINARIES_INSTALLER_H_
+
+#include <windows.h>
+
+namespace app_host {
+
+// Attempts to install the Chrome Binaries. Blocks until the installation
+// process is complete. The AP value, if any, from the currently installed App
+// Host will be used.
+HRESULT InstallBinaries();
+
+}  // namespace app_host
+
+#endif  // CHROME_BROWSER_EXTENSIONS_APP_HOST_BINARIES_INSTALLER_H_