Introduce a file-manager-new-ui flag for the new UI of Files.app.

This patch introduces the switch --file-manager-new-ui which runs Files.app as a platform app and with the new UI.

TEST=Run Chrome with --file-manager-new-ui. Files.app should be borderless.
BUG=226904

Review URL: https://codereview.chromium.org/13707002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192789 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/browser_resources.grd b/chrome/browser/browser_resources.grd
index 37d9262..8f55b2d0 100644
--- a/chrome/browser/browser_resources.grd
+++ b/chrome/browser/browser_resources.grd
@@ -301,6 +301,7 @@
       <if expr="pp_ifdef('file_manager_extension')">
         <include name="IDR_FILEMANAGER_MANIFEST" file="resources\file_manager\manifest.json" type="BINDATA" />
         <include name="IDR_FILEMANAGER_MANIFEST_V1" file="resources\file_manager\manifest_v1.json" type="BINDATA" />
+        <include name="IDR_FILEMANAGER_MANIFEST_NEW_UI" file="resources\file_manager\manifest_new_ui.json" type="BINDATA" />
       </if>
       <if expr="pp_ifdef('image_loader_extension')">
         <include name="IDR_IMAGE_LOADER_MANIFEST" file="resources\image_loader\manifest.json" type="BINDATA" />