Strings for new Chrome Cleanup prompt and Web UI

chrome/app/chromium_strings.grd

Index: chrome/app/chromium_strings.grd
diff --git a/chrome/app/chromium_strings.grd b/chrome/app/chromium_strings.grd
index 76ebfc5f41705e134438bb41c4524c70d6d4044e..3dcc6dc28f9d7c84536aa7088a1359f8ce185d4b 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -764,13 +764,28 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
         </message>
       </if>
 
-      <!-- SRT bubble messages -->
+      <!-- SRT bubble messages.
+           This string is for the old Chrome Cleanup version and should be
+           deleted as soon as all Chrome Cleanup UI is fully integrated into
+           Chrome. -->
       <if expr="is_win">
         <message name="IDS_SRT_BUBBLE_TITLE" desc="Text for the title of the software removal tool bubble view.">
             Chromium has detected unusual behavior
         </message>
       </if>
 
+      <!-- Chrome Cleanup prompt and web UI.
+           Note: these strings should only be used by Google Chrome, but
+                 omitting them brings up a hash collision error. -->
+      <if expr="is_win">
+        <message name="IDS_CHROME_CLEANUP_PROMPT_EXPLANATION" desc="Description in the Chrome Cleanup dialog that Chrome browser shows when unwanted software, like ad injectors or software that changes the user's settings without their knowledge, is found on the user's computer. Appears under the title asking 'Remove harmful software?' Actor is Chrome; we are asking, Do you want Chrome to remove harmful software? 'it' is harmful software. User has the option of clicking 'Remove' to proceed with a cleanup, or 'Details' to see more details. Preferrably, the translation for this string should have the same meaning as IDS_CHROME_CLEANUP_WEBUI_EXPLANATION.">
+          Chromium found harmful software on your computer. Chromium can remove it and restore your settings to make your browser work normally again.
+        </message>
+        <message name="IDS_CHROME_CLEANUP_WEBUI_EXPLANATION" desc="Description in the Chrome Cleanup web page that Chrome browser shows when unwanted software, like ad injectors or software that changes the user's settings without their knowledge, is found on the user's computer. Appears under the title asking 'Remove harmful software?' Actor is Chrome; we are asking, Do you want Chrome to remove harmful software? 'it' is harmful software. The user can click 'Remove' to proceed with a cleanup. Preferrably, the translation for this string should have the same meaning as IDS_CHROME_CLEANUP_PROMPT_EXPLANATION.">
+          Chromium found harmful software on your computer. Chromium can remove it and restore your settings to make your browser work normally again.
+        </message>
+      </if>
+
       <!-- Sync/sign-in error messages -->
       <if expr="not chromeos">
         <message name="IDS_SYNC_PASSPHRASE_ERROR_BUBBLE_VIEW_MESSAGE" desc="Message in the sync error bubble view when the user needs to update their sync passphrase.">