Make the Location is Allowed link take the Geo Header into account.

chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java
index 807fb6e23162617af36407926fc5a448efdfd17d..dadde5b230a44e8b5e0943959ea2f3f33a7c9c0e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/website/SingleWebsitePreferences.java
@@ -35,12 +35,15 @@ public class SingleWebsitePreferences extends PreferenceFragment
         implements DialogInterface.OnClickListener, OnPreferenceChangeListener,
                 OnPreferenceClickListener {
     // SingleWebsitePreferences expects either EXTRA_SITE (a Website) or
-    // EXTRA_ADDRESS (a WebsiteAddress) to be present (but not both). If
+    // EXTRA_ORIGIN (a WebsiteAddress) to be present (but not both). If
     // EXTRA_SITE is present, the fragment will display the permissions in that
-    // Website object. If EXTRA_ADDRESS is present, the fragment will find all
-    // permissions for that website address and display those.
+    // Website object. If EXTRA_ORIGIN is present, the fragment will find all
+    // permissions for that website address and display those. If EXTRA_LOCATION
+    // is present, the fragment will add a Location toggle, even if the site
+    // specifies no Location permission.
     public static final String EXTRA_SITE = "org.chromium.chrome.preferences.site";
     public static final String EXTRA_ORIGIN = "org.chromium.chrome.preferences.origin";
+    public static final String EXTRA_LOCATION = "org.chromium.chrome.preferences.location";
 
     // Preference keys, see single_website_preferences.xml
     // Headings:
@@ -115,14 +118,18 @@ public class SingleWebsitePreferences extends PreferenceFragment
      *
      * @param url The URL to open the fragment with. This is a complete url including scheme,
      *            domain, port,  path, etc.
+     * @param locationValueIfMissing The value to show for the Location UI (optional, can be blank).
      * @return The bundle to attach to the preferences intent.
      */
-    public static Bundle createFragmentArgsForSite(String url) {
+    public static Bundle createFragmentArgsForSite(String url, String locationValueIfMissing) {

[newt (away), 2015/04/28 06:44:01]

Instead of adding a new argument to this method, I'd just add the EXTRA_LOCATION
value to the returned Bundle in SearchEngineAdapter.java.

[Finnur, 2015/04/29 14:54:09]

Oooh, I like that idea! :)

         Bundle fragmentArgs = new Bundle();
         // TODO(mvanouwerkerk): Define a pure getOrigin method in UrlUtilities that is the
         // equivalent of the call below, because this is perfectly fine for non-display purposes.
         String origin = UrlUtilities.getOriginForDisplay(URI.create(url), true /*  schowScheme */);
         fragmentArgs.putString(SingleWebsitePreferences.EXTRA_ORIGIN, origin);
+        if (locationValueIfMissing.length() != 0) {
+            fragmentArgs.putString(SingleWebsitePreferences.EXTRA_LOCATION, locationValueIfMissing);
+        }
         return fragmentArgs;
     }
 
@@ -268,7 +275,15 @@ public class SingleWebsitePreferences extends PreferenceFragment
             } else if (PREF_JAVASCRIPT_PERMISSION.equals(preference.getKey())) {
                 setUpListPreference(preference, mSite.getJavaScriptPermission());
             } else if (PREF_LOCATION_ACCESS.equals(preference.getKey())) {
-                setUpListPreference(preference, mSite.getGeolocationPermission());
+                Object extraLocation = getArguments().getSerializable(EXTRA_LOCATION);
+                if (mSite.getGeolocationPermission() == null && extraLocation != null) {
+                    String origin = mSite.getAddress().getOrigin();
+                    mSite.setGeolocationInfo(new GeolocationInfo(origin, origin));
+                    setUpListPreference(preference, extraLocation.toString().equals("allow")
+                            ? ContentSetting.ALLOW : ContentSetting.BLOCK);
+                } else {
+                    setUpListPreference(preference, mSite.getGeolocationPermission());
+                }
             } else if (PREF_MIDI_SYSEX_PERMISSION.equals(preference.getKey())) {
                 setUpListPreference(preference, mSite.getMidiPermission());
             } else if (PREF_POPUP_PERMISSION.equals(preference.getKey())) {