[filebrowser] Introduce View action for supported file types (e.g. pdf).

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 9962 matching lines @@
       <message name="IDS_FILE_BROWSER_ARCHIVE_MOUNT_FAILED" desc="Title of the error dialog when file mount operation failed.">
         Unable to open open "$1": $2
       </message>
       <message name="IDS_FILE_BROWSER_MOUNT_ARCHIVE" desc="Title of the action for mounting an archive file to work with its contents.">
         Open
       </message>
       <message name="IDS_FILE_BROWSER_FORMAT_DEVICE" desc="Title of the action for formatting removable device.">
         Format device
       </message>
 
+      <message name="IDS_FILE_BROWSER_OPEN_ACTION" desc="Title of the action for opening contents of the file.">
+        Open
+      </message>
+      <message name="IDS_FILE_BROWSER_INSTALL_CRX" desc="Title of the action for installing extension from CRX file.">
+        Open
+      </message>
+
       <message name="IDS_FILE_BROWSER_GALLERY" desc="Title of the action to open the Gallery.">
         View and Edit
       </message>
       <message name="IDS_FILE_BROWSER_GALLERY_EDIT" desc="In the Gallery, the title on the button shows/hides editing buttons.">
         Edit
       </message>
       <message name="IDS_FILE_BROWSER_GALLERY_SHARE" desc="In the Gallery, the title on the button that lets the user share a photo.">
         Share
       </message>
       <message name="IDS_FILE_BROWSER_GALLERY_ENTER_WHEN_DONE" desc="In the Gallery, the text in a floating panel that prompts the user to press enter when they are done with the changes to a photo.">
@@ skipping 5202 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
   </release>
 </grit>