Update Fakebox and Omnibox to display "Search Google or type a URL".

Previously we had updated it to say:
"Search Google or type a web address"

That was not correct. We are sticking with "a URL".

Bug: 823535
Change-Id: I99f2c1d1397136001ef81b2dbaa4d2059babf35b
Reviewed-on: https://chromium-review.googlesource.com/1087846Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#564893}

chrome/app/generated_resources.grd

@@ -4791,7 +4791,7 @@ Keep your key file in a safe place. You will need it to create new versions of y
 
       <!-- Omnibox -->
       <message name="IDS_OMNIBOX_PLACEHOLDER_TEXT" desc="The text displayed in the Omnibox when it is empty and unfocused.">
-        Search <ph name="SEARCH_ENGINE_NAME">$1<ex>Google</ex></ph> or type a web address
+        Search <ph name="SEARCH_ENGINE_NAME">$1<ex>Google</ex></ph> or type a URL
       </message>
       <if expr="not use_titlecase">
         <message name="IDS_PASTE_AND_GO" desc="The text label of the Paste And Go menu item when the clipboard contains a URL">
@@ -4850,7 +4850,7 @@ Keep your key file in a safe place. You will need it to create new versions of y
         Search Google or type URL
       </message>
       <message name="IDS_GOOGLE_SEARCH_BOX_EMPTY_HINT_MD" desc="The text displayed in the fakebox (on the New Tab page) when it is empty, Google is the default search engine, and the Material Design UI is enabled.">
-        Search Google or type a web address
+        Search Google or type a URL
       </message>
       <message name="IDS_NTP_CUSTOM_LINKS_ADD_SHORTCUT_TOOLTIP" desc="The tooltip for adding a custom link shortcut. (On the New Tab Page)">
         Add shortcut