Add Interstitial for user consent

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

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareEntryActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareEntryActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareEntryActivity.java
new file mode 100644
index 0000000000000000000000000000000000000000..e63e536096e0ecffce5b6a85a2dc23a88d7bfc1d
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebShareEntryActivity.java
@@ -0,0 +1,65 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.physicalweb;
+
+import android.app.Activity;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AlertDialog;
+
+import org.chromium.base.ContextUtils;
+import org.chromium.chrome.R;
+
+/**
+ * A simple activity that allows Chrome to start the physical web sharing service.

[cco3, 2017/03/16 22:54:33]

Update.

[iankc, 2017/03/17 00:08:44]

Done.

+ */
+public class PhysicalWebShareEntryActivity extends Activity {
+    public static final String SHARING_ENTRY_URL = "physical_web.entry.url";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Bundle extras = getIntent().getExtras();
+        if (extras == null) {
+            finish();
+            return;
+        }
+        final String url = extras.getString(SHARING_ENTRY_URL);
+
+        new AlertDialog.Builder(this)
+                .setTitle(R.string.physical_web_share_entry_title)
+                .setMessage(R.string.physical_web_share_entry_message)
+                .setPositiveButton(R.string.physical_web_share_entry_continue,
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                ContextUtils.getAppSharedPreferences()

[cco3, 2017/03/16 22:54:33]

I'd move reading and writing to this value to PhysicalWeb.java

[iankc, 2017/03/17 00:08:44]

Done.

+                                        .edit()
+                                        .putBoolean(
+                                                PhysicalWeb.PHYSICAL_WEB_SHARING_PREFERENCE, true)
+                                        .apply();
+
+                                startBroadcastService(url);
+                                finish();
+                            }
+                        })
+                .setNegativeButton(R.string.physical_web_share_entry_cancel,
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                finish();
+                            }
+                        })
+                .setIcon(android.R.drawable.ic_dialog_alert)

[cco3, 2017/03/16 22:54:33]

It seems a little harsh, is this what we want?  Are there other options?

[iankc, 2017/03/17 00:08:44]

Yep. I could use the ic_dialog_info.
http://docs.since2006.com/android/2.1-drawables.php

+                .setCancelable(false)

[cco3, 2017/03/16 22:54:32]

Wouldn't it make more sense to get rid of the negative button and just
setOnCancelListener?

[iankc, 2017/03/17 00:08:44]

Acknowledged.

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