Support saving a web page as a plain HTML

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index f040d5495581aea52e98d31a83c723bea7431f72..ba21dc7c1ef6c50a81eaef8725788a5d9f7429ad 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5456,7 +5456,7 @@ Keep your key file in a safe place. You will need it to create new versions of y
         Save Page as MHTML
       </message>
       <message name="IDS_FLAGS_SAVE_PAGE_AS_MHTML_DESCRIPTION" desc="Description of the 'Save Page as MHTML' lab.">
-        Disables saving pages as HTML-only or HTML Complete; enables saving pages only as MHTML: a single text file containing HTML and all sub-resources.
+        Enables saving pages as MHTML: a single text file containing HTML and all sub-resources.
       </message>
       <message name="IDS_FLAGS_DISABLE_DEVICE_DISCOVERY_NAME" desc="Title of the 'disable device discovery' flag.">
         Disable Device Discovery
@@ -11498,6 +11498,9 @@ The following application will be launched if you accept this request:
       <message name="IDS_SAVE_PAGE_DESC_HTML_ONLY" desc="In the Save Page dialog, the description of saving only the HTML of a webpage.">
         Webpage, HTML Only
       </message>
+      <message name="IDS_SAVE_PAGE_DESC_SINGLE_FILE" desc="In the Save Page dialog, the description of saving both the HTML and all shown resources into an archive.">
+        Web Archive, Single File
+      </message>
       <message name="IDS_SAVE_PAGE_DESC_COMPLETE" desc="In the Save Page dialog, the description of saving both the HTML and all shown resources.">
         Webpage, Complete
       </message>