Add flag to enable web content to invoke web intents.

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 96d7af665845b843fb683de397382d88ba25be00..14398234764080fdeec34a9778a16f0b4bd8ad1d 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5706,6 +5706,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <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.
       </message>
+      <message name="IDS_FLAGS_WEB_INTENTS_ENABLED_FOR_WEB_CONTENT_NAME" desc="Name of the lab to enable web intents invocation for web content.">
+        Enable web intents invocation for web content
+      </message>
+      <message name="IDS_FLAGS_WEB_INTENTS_ENABLED_FOR_WEB_CONTENT_DESCRIPTION" desc="Description of the lab to enable web intents invocation for web content.">
+        Make it possible for any web page to invoke web intents.
+      </message>
       <message name="IDS_FLAGS_XSS_AUDITOR_NAME" desc="Description of the 'XSS Auditor' lab.">
         XSS Auditor
       </message>