[Live Caption] Update Live Caption subtitle string based on UX feedback.

Bug: 1055150, 1167349
Change-Id: I33c8f137bd15bfe971817d154ca18947ddfc5b38
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2645061Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Abigail Klein <abigailbklein@google.com>
Cr-Commit-Position: refs/heads/master@{#846405}

chrome/app/generated_resources.grd

@@ -6015,10 +6015,10 @@ Keep your key file in a safe place. You will need it to create new versions of y
         To browse privately, click the dots icon menu to open an incognito window
       </message>
       <message name="IDS_LIVE_CAPTION_PROMO" desc="Text shown on promotional UI appearing next to the global media controls button">
-        Get captions for your media
+        Get captions for your audio and video
       </message>
       <message name="IDS_LIVE_CAPTION_PROMO_SCREENREADER" desc="Text announced encouraging users to open live caption">
-        Get captions for your media by enabling Live Caption in settings
+        Get captions for your audio and video by enabling Live Caption in settings
       </message>
       <message name="IDS_NEWTAB_PROMO_0" desc="Variations option 1. Text shown on promotional UI appearing next to the New Tab button, which encourages users to use it.">
         Open a new tab with one click

chrome/app/generated_resources_grd/IDS_LIVE_CAPTION_PROMO.png.sha1

-7a566f94e78d5c397925c5ef4094678799afde22
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+edad59823f6c6253536d6494a243fcc025baad3f
\ No newline at end of file

chrome/app/generated_resources_grd/IDS_LIVE_CAPTION_PROMO_SCREENREADER.png.sha1

-7a566f94e78d5c397925c5ef4094678799afde22
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+6b0c6e1a6a9658733e2de4db41970923e10399cf
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chrome/app/settings_strings.grdp

@@ -56,9 +56,16 @@
   <message name="IDS_SETTINGS_CAPTIONS_ENABLE_LIVE_CAPTION_TITLE" desc="Name of the setting to enable Live Caption feature.">
     Live Caption
   </message>
-  <message name="IDS_SETTINGS_CAPTIONS_ENABLE_LIVE_CAPTION_SUBTITLE" desc="Description text for Live Caption feature. When media is playing (such as a video) the user will see captions on the screen. Only works in Chrome browser initially.">
-    Automatically creates captions for media in Chrome browser (currently available in English only)
-  </message>
+  <if expr="chromeos">
+    <message name="IDS_SETTINGS_CAPTIONS_ENABLE_LIVE_CAPTION_SUBTITLE" desc="Description text for Live Caption feature. When audio or video is playing, the user will see captions on the screen. Only works in Chrome browser initially. Currently only works for English media.">
+      Automatically creates captions for English audio and video (currently available in Chrome browser only). Audio and captions never leave your device.
+    </message>
+  </if>
+  <if expr="not chromeos">
+    <message name="IDS_SETTINGS_CAPTIONS_ENABLE_LIVE_CAPTION_SUBTITLE" desc="Description text for Live Caption feature. When audio or video is playing, the user will see captions on the screen. Currently only works for English media.">
+      Automatically creates captions for English audio and video. Audio and captions never leave your device.
+    </message>
+  </if>
   <message name="IDS_SETTINGS_CAPTIONS_LIVE_CAPTION_DOWNLOAD_PROGRESS" desc="Download progress indicator after Live Caption is enabled. The user needs to download certain files for the feature to work.">
     Downloading speech recognition files... <ph name="PERCENT">$1<ex>17</ex></ph>%
   </message>

chrome/app/settings_strings_grdp/IDS_SETTINGS_CAPTIONS_ENABLE_LIVE_CAPTION_SUBTITLE.png.sha1

-4670b194f154b7a3dcac6d1f853a2c56735e7668
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+3494c03855a7d29de5867b9e74e58c8ae2071686
\ No newline at end of file