Remove unused Autofill strings.

Or mark them as platform-specific.

Change-Id: I9f02c101b3df5306ea8d18fc3b3041573510c86c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1420275
Commit-Queue: sebsg <sebsg@chromium.org>
Reviewed-by: sebsg <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659473}

chrome/app/chromium_strings.grd

@@ -768,15 +768,11 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
         </message>
       </if>
 
-      <message name="IDS_AUTOFILL_DIALOG_SAVE_LOCALLY_CHECKBOX" desc="Checkbox that controls whether info the user types into the autofill dialog is saved by chrome.">
-        Save details in Chromium
-      </message>
-      <message name="IDS_AUTOFILL_DIALOG_SAVE_LOCALLY_TOOLTIP" desc="Tooltip which explains function of checkbox that controls whether info the user types into the autofill dialog is saved by chrome.">
-        Chromium will securely store your personal details so you don't need to type them in again.
-      </message>
-      <message name="IDS_AUTOFILL_DESCRIBE_LOCAL_COPY" desc="Text label that described a Wallet credit card which has been copied to the local Chrome instance.">
-        Copied to Chromium
-      </message>
+      <if expr="is_android">
+        <message name="IDS_AUTOFILL_DESCRIBE_LOCAL_COPY" desc="Text label that described a Wallet credit card which has been copied to the local Chrome instance.">
+          Copied to Chromium
+        </message>
+      </if>
 
       <!-- App list -->
       <if expr="enable_app_list">

chrome/app/google_chrome_strings.grd

@@ -778,15 +778,11 @@ Signing in anyway will merge Chrome information like bookmarks, history, and oth
         </message>
       </if>
 
-      <message name="IDS_AUTOFILL_DIALOG_SAVE_LOCALLY_CHECKBOX" desc="Checkbox that controls whether info the user types into the autofill dialog is saved by chrome.">
-        Save details in Chrome
-      </message>
-      <message name="IDS_AUTOFILL_DIALOG_SAVE_LOCALLY_TOOLTIP" desc="Tooltip which explains function of checkbox that controls whether info the user types into the autofill dialog is saved by chrome.">
-        Chrome will securely store your personal details so you don't need to type them again.
-      </message>
-      <message name="IDS_AUTOFILL_DESCRIBE_LOCAL_COPY" desc="Text label that described a Wallet credit card which has been copied to the local Chrome instance.">
-        Copied to Chrome
-      </message>
+      <if expr="is_android">
+        <message name="IDS_AUTOFILL_DESCRIBE_LOCAL_COPY" desc="Text label that described a Wallet credit card which has been copied to the local Chrome instance.">
+          Copied to Chrome
+        </message>
+      </if>
 
       <!-- App list -->
       <if expr="enable_app_list">

components/autofill_strings.grdp

@@ -11,9 +11,13 @@
       CLEAR FORM
     </message>
   </if>
-  <message name="IDS_AUTOFILL_CLEAR_LOCAL_COPY_BUTTON" desc="The label of the button that clears the local copy of a Wallet Credit Card." formatter_data="android_java">
-    Clear copy
-  </message>
+
+  <if expr="is_android or is_ios">
+    <message name="IDS_AUTOFILL_CLEAR_LOCAL_COPY_BUTTON" desc="The label of the button that clears the local copy of a Wallet Credit Card." formatter_data="android_java">
+      Clear copy
+    </message>
+  </if>
+
   <message name="IDS_AUTOFILL_WARNING_INSECURE_CONNECTION" desc="Warning text to show when credit card autofill is disabled because the website is not using a secure connection.">
     Automatic credit card filling is disabled because this form does not use a secure connection.
   </message>