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..8a65a837b6c0a619404b5e032cb7f0f20c3c85a1 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -2613,6 +2613,18 @@ 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=".">

[mattreynolds, 2017/03/17 00:52:40]

Description

[iankc, 2017/03/17 01:46:11]

Done.

+        This service needs to anonymously send this website address to Google servers for verification.
+      </message>
+      <message name="IDS_PHYSICAL_WEB_SHARE_ENTRY_CONTINUE" desc="Label on button on the alert dialogue for the user to consent to use our service.">

[mattreynolds, 2017/03/17 00:52:40]

IDS_CONTINUE_BUTTON already exists, let's use that

[iankc, 2017/03/17 01:46:11]

Done.

+        Continue
+      </message>
+      <message name="IDS_PHYSICAL_WEB_SHARE_ENTRY_CANCEL" desc="Label on button to alert dialogue for the user to not use our service.">

[mattreynolds, 2017/03/17 00:52:39]

IDS_CANCEL

[iankc, 2017/03/17 01:46:11]

Done.

+        Cancel
+      </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>