[CrOS Settings] Move OS Device Pointer strings from settings strings

This CL moves chromeOS strings for settings Device pointer page strings
from settings_strings.grdp to os_settings_strings.grdp. It continues
the process of moving all chromeOS specific strings.

Bug: 967883
Change-Id: I193b33a5bbaf251b4e2cb0d6a8ea67c9a7906c52
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2065251
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743396}

chrome/app/os_settings_strings.grdp

@@ -919,5 +919,43 @@
   <message name="IDS_SETTINGS_PARENTAL_CONTROLS_SET_UP_BUTTON_ROLE" desc="Role description of the button which launches page which enables ChromeOS's parental controls. Spoken aloud by screen readers when the Set Up button is focused">
     Set up button
   </message>
+
+  <!-- Device pointer page (OS settings) -->
+  <message name="IDS_SETTINGS_MOUSE_TITLE" desc="In Device Settings, the title of the mouse settings subpage.">
+    Mouse
+  </message>
+  <message name="IDS_SETTINGS_TOUCHPAD_TITLE" desc="In Device Settings, the title of the touchpad settings subpage.">
+    Touchpad
+  </message>
+    <message name="IDS_SETTINGS_TOUCHPAD_TAP_TO_CLICK_ENABLED_LABEL" desc="In Device Settings, the text next to the checkbox that allows tapping the touchpad to work as a click.">
+    Enable tap-to-click
+  </message>
+  <message name="IDS_SETTINGS_TOUCHPAD_SPEED_LABEL" desc="In Device Settings, the text next to the slider that sets the speed (sensitivity) of the touchpad.">
+    Touchpad speed
+  </message>
+  <message name="IDS_SETTINGS_POINTER_SPEED_SLOW_LABEL" desc="In Device Settings, the text under the left (less sensitive) side of the slider for the pointer (mouse/touch) speed (sensitivity).">
+    Slow
+  </message>
+  <message name="IDS_SETTINGS_POINTER_SPEED_FAST_LABEL" desc="In Device Settings, the text under the right (more sensitive) side of the slider for the pointer (mouse/touchpad) speed (sensitivity).">
+    Fast
+  </message>
+  <message name="IDS_SETTINGS_MOUSE_SPEED_LABEL" desc="In Device Settings, the text next to the slider that sets the speed (sensitivity) of the mouse.">
+    Mouse speed
+  </message>
+  <message name="IDS_SETTINGS_MOUSE_SWAP_BUTTONS_LABEL" desc="In Device Settings, the text next to the checkbox to set the primary mouse button to the right button instead of the left button.">
+    Swap primary mouse button
+  </message>
+  <message name="IDS_SETTINGS_MOUSE_REVERSE_SCROLL_LABEL" desc="In Device Settings, the text next to the checkbox to set reverse scrolling.">
+    Reverse scrolling
+  </message>
+  <message name="IDS_SETTINGS_MOUSE_ACCELERATION_LABEL" desc="In Device Settings, the text next to the checkbox to disable mouse acceleration.">
+    Enable mouse acceleration
+  </message>
+  <message name="IDS_SETTINGS_TOUCHPAD_ACCELERATION_LABEL" desc="In Device Settings, the text next to the checkbox to disable touchpad acceleration.">
+    Enable touchpad acceleration
+  </message>
+  <message name="IDS_SETTINGS_MOUSE_AND_TOUCHPAD_TITLE" desc="In Device Settings, the title of the mouse and touchpad settings subpage (when the user has both types of devices).">
+    Mouse and touchpad
+  </message>
 </if>
 </grit-part>
\ No newline at end of file

chrome/app/settings_strings.grdp

@@ -3810,50 +3810,13 @@
     <message name="IDS_SETTINGS_DEVICE_TITLE" desc="Name of the settings page which displays device and peripheral settings.">
       Device
     </message>
-    <message name="IDS_SETTINGS_MOUSE_TITLE" desc="In Device Settings, the title of the mouse settings subpage.">
-      Mouse
-    </message>
-    <message name="IDS_SETTINGS_TOUCHPAD_TITLE" desc="In Device Settings, the title of the touchpad settings subpage.">
-      Touchpad
-    </message>
-    <message name="IDS_SETTINGS_MOUSE_AND_TOUCHPAD_TITLE" desc="In Device Settings, the title of the mouse and touchpad settings subpage (when the user has both types of devices).">
-      Mouse and touchpad
-    </message>
     <message name="IDS_SETTINGS_KEYBOARD_TITLE" desc="In Device Settings, the title of the keyboard settings subpage.">
       Keyboard
     </message>
     <!-- Touchpad -->
-    <message name="IDS_SETTINGS_TOUCHPAD_TAP_TO_CLICK_ENABLED_LABEL" desc="In Device Settings, the text next to the checkbox that allows tapping the touchpad to work as a click.">
-      Enable tap-to-click
-    </message>
-    <message name="IDS_SETTINGS_TOUCHPAD_SPEED_LABEL" desc="In Device Settings, the text next to the slider that sets the speed (sensitivity) of the touchpad.">
-      Touchpad speed
-    </message>
-    <message name="IDS_SETTINGS_POINTER_SPEED_SLOW_LABEL" desc="In Device Settings, the text under the left (less sensitive) side of the slider for the pointer (mouse/touch) speed (sensitivity).">
-      Slow
-    </message>
-    <message name="IDS_SETTINGS_POINTER_SPEED_FAST_LABEL" desc="In Device Settings, the text under the right (more sensitive) side of the slider for the pointer (mouse/touchpad) speed (sensitivity).">
-      Fast
-    </message>
     <message name="IDS_SETTINGS_SCROLL_LABEL" desc="In Device Settings, the title above the radio buttons to choose the scrolling behavior.">
       Scrolling
     </message>
-    <!-- Mouse -->
-    <message name="IDS_SETTINGS_MOUSE_SPEED_LABEL" desc="In Device Settings, the text next to the slider that sets the speed (sensitivity) of the mouse.">
-      Mouse speed
-    </message>
-    <message name="IDS_SETTINGS_MOUSE_SWAP_BUTTONS_LABEL" desc="In Device Settings, the text next to the checkbox to set the primary mouse button to the right button instead of the left button.">
-      Swap primary mouse button
-    </message>
-    <message name="IDS_SETTINGS_MOUSE_REVERSE_SCROLL_LABEL" desc="In Device Settings, the text next to the checkbox to set reverse scrolling.">
-      Reverse scrolling
-    </message>
-    <message name="IDS_SETTINGS_MOUSE_ACCELERATION_LABEL" desc="In Device Settings, the text next to the checkbox to disable mouse acceleration.">
-      Enable mouse acceleration
-    </message>
-    <message name="IDS_SETTINGS_TOUCHPAD_ACCELERATION_LABEL" desc="In Device Settings, the text next to the checkbox to disable touchpad acceleration.">
-      Enable touchpad acceleration
-    </message>
     <!-- Keyboard -->
     <message name="IDS_SETTINGS_KEYBOARD_KEY_SEARCH" desc="In Device Settings, the label and dropdown list item for the Search key.">
       Search