Add settings for keyboard auto-repeat to options page.

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index 604e8413b08cd415c83274fed3ccceec6a1ead17..ba75036cd16de986fbd0f2e3527914ea62a00ca2 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -3413,6 +3413,34 @@ Press any key to continue exploring.
            desc="A label describing how to use the top-row keys' original actions when the treat-as-function-keys setting is enabled.">
     Hold the Search key to switch the behavior of the top-row keys.
   </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_ENABLE"
+           desc="The checkbox label for enabling keyboard auto-repeat.">
+    Enable auto-repeat
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_DELAY"
+           desc="The label for the slider for the delay before auto-repeat begins. The delay is the amount of time a key must be held down before auto-repeating begins.">
+    Delay before repeat:
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_DELAY_LONG"
+           desc="The label for the beginning of the auto-repeat delay slider, representing a long delay.">
+    Long
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_DELAY_SHORT"
+           desc="The label for the end of the auto-repeat delay slider, representing a short delay.">
+    Short
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_RATE"
+           desc="The label for the slider for the auto-repeat rate. The rate is how many times a key repeats per second once auto-repeating has begun.">
+    Repeat rate:
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_RATE_SLOW"
+           desc="The label for the beginning of the auto-repeat rate slider, representing a slow repeat rate.">
+    Slow
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_AUTO_REPEAT_RATE_FAST"
+           desc="The label for the end of the auto-repeat rate slider, representing a fast repeat rate.">
+    Fast
+  </message>
   <message name="IDS_OPTIONS_SETTINGS_CHANGE_LANGUAGE_AND_INPUT_SETTINGS"
            desc="The link to open 'Language and input settings' window.">
     Change language and input settings