nit: Use Title Case for "Select All" in views::Textfield context menus on Mac.

ui/strings/ui_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. Specifically, these are UI strings that are used by app/ that
 need to be translated for each locale.-->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       output_all_resource_defines="false" source_lang_id="en" enc_check="möl">
   <outputs>
     <!-- TODO add each of your output files.  Modify the three below, and add
@@ skipping 395 matching lines @@
       </message>
       <message name="IDS_APP_COPY" desc="The text label of the Copy menu item">
         &amp;Copy
       </message>
       <message name="IDS_APP_PASTE" desc="The text label of the Paste menu item">
         &amp;Paste
       </message>
       <message name="IDS_APP_DELETE" desc="The text label of the Delete menu item">
         &amp;Delete
       </message>
-      <message name="IDS_APP_SELECT_ALL" desc="The text label of the Select All menu item">
-        Select &amp;all
-      </message>
+      <if expr="not use_titlecase">
+        <message name="IDS_APP_SELECT_ALL" desc="The text label of the Select All menu item">
+          Select &amp;all
+        </message>
+      </if>
+      <if expr="use_titlecase">
+        <message name="IDS_APP_SELECT_ALL" desc="In Title Case: The text label of the Select All menu item">
+          Select &amp;All
+        </message>
+      </if>
 
       <!-- Generic terms -->
       <message name="IDS_APP_OK" desc="Used for Ok on buttons">
         OK
       </message>
       <message name="IDS_APP_CANCEL" desc="Used for Cancel on buttons">
         Cancel
       </message>
       <message name="IDS_APP_CLOSE" desc="A generic term for Close on buttons and menus.">
         Close
@@ skipping 256 matching lines @@
       </message>
       <message name="IDS_DISPLAY_NAME_INTERNAL" desc="The name used for internal displays, which is shown in the display settings.">
         Internal Display
       </message>
       <message name="IDS_DISPLAY_NAME_VIRTUAL" desc="The name used for virtual displays, which is shown in the display settings. Virtual displays are not associated with a physical monitor.">
         Virtual Display
       </message>
     </messages>
   </release>
 </grit>