Add Interstitial for user consent

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index e3f9d1bca4e80d63e505b0a8ced8a1dad9a68b8a..9ff1084a6b5f6ebde6807345a4b5babe3106d19c 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -2613,6 +2613,12 @@ You must have Bluetooth and Location turned on in order to use the Physical Web.
       <message name="IDS_PHYSICAL_WEB_SHARE_ACTIVITY_TITLE" desc="Title of the Physical Web Share activity that will appear in the Android share dialog.">
         Physical Web
       </message>
+      <message name="IDS_PHYSICAL_WEB_SHARE_ENTRY_TITLE" desc="Label of the Physical Web Share Entry Activity.">
+        Physical Web Sharing
+      </message>
+      <message name="IDS_PHYSICAL_WEB_SHARE_ENTRY_MESSAGE" desc="This is the message the is shown in the alert box to notify that the Physical Web Share Feature sends a URL to Google Servers.">
+        This service needs to anonymously send this website address to Google servers for verification.
+      </message>
       <message name="IDS_PHYSICAL_WEB_BROADCAST_NOTIFICATION" desc="The message that will be displayed when a Physical Web URL is broadcasted successfully.">
         Website is broadcasting
       </message>