Add power-user keyboard mode for ChromeOS with Search key acting as a typical Fn key.

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 79d933b3df00a1fed18bf270bb0562ee3aa40654..52f84f63a83f7b83cf79046165360efecca384bb 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6730,6 +6730,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_APP_LIST_SHOW_APPS_ONLY_DESCRIPTION" desc="Description of the flag to show only apps in app list search.">
         Shows only apps in app list search.
       </message>
+      <message name="IDS_FLAGS_ENABLE_CHROMEOS_FUNCTION_KEY_NAME" desc="Name of the flag to enable the option for using the Search key as a Function key.">
+        Allow Search key to act as a Function key.
+      </message>
+      <message name="IDS_FLAGS_ENABLE_CHROMEOS_FUNCTION_KEY_DESCRIPTION" desc="Description of the flag to enable the option for using the Search key as a Function key.">
+        Adds an option to the Keyboard settings to allow using the Search key on a ChromeOS laptop keyboard for accessing extended keyboard shortcuts such as Delete, Home, and End.
+      </message>
       <message name="IDS_FLAGS_ENABLE_VIEWS_TEXTFIELD_NAME" desc="Name of the flag to use NativeTextfieldViews instead of NativeTextfieldWin.">
         Enable Views Textfield.
       </message>