Add Interstitial for user consent

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
index 09891aa8bbbe61dbc91eb2978a1d954d048f65cc..fea219ef8e262236cbbcc778266617b87e68ec6d 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareActivity.java
@@ -7,6 +7,8 @@ package org.chromium.chrome.browser.physicalweb;
 import android.content.Intent;
 import android.os.Build;
 
+import org.chromium.base.ContextUtils;
+import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.share.ShareActivity;
 
@@ -18,7 +20,17 @@ public class PhysicalWebShareActivity extends ShareActivity {
     protected void handleShareAction(ChromeActivity triggeringActivity) {
         String url = triggeringActivity.getActivityTab().getUrl();
 
-        Intent intent = new Intent(this, PhysicalWebBroadcastService.class);
+        if (!PhysicalWeb.sharingIsOptedIn()) {
+            triggeringActivity.onMenuOrKeyboardAction(R.id.physical_web_sharing_id, true);

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

Please add a comment explaining that this shows the interstitial.

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

Done.

+            return;
+        }
+
+        startBroadcastService(url);
+    }
+
+    private void startBroadcastService(String url) {
+        Intent intent =
+                new Intent(ContextUtils.getApplicationContext(), PhysicalWebBroadcastService.class);
         intent.putExtra(PhysicalWebBroadcastService.DISPLAY_URL_KEY, url);
         startService(intent);
     }