Add a null check for PermissionBubbleManager::FromWebcontents.

chrome/browser/geolocation/chrome_geolocation_permission_context.cc

Index: chrome/browser/geolocation/chrome_geolocation_permission_context.cc
diff --git a/chrome/browser/geolocation/chrome_geolocation_permission_context.cc b/chrome/browser/geolocation/chrome_geolocation_permission_context.cc
index 37d03269ce7577020014157baf08772e333ea15f..6b3eb194fe6acadabffa0c994fc6329b340f242f 100644
--- a/chrome/browser/geolocation/chrome_geolocation_permission_context.cc
+++ b/chrome/browser/geolocation/chrome_geolocation_permission_context.cc
@@ -242,9 +242,11 @@ void ChromeGeolocationPermissionContext::DecidePermission(
       if (PermissionBubbleManager::Enabled()) {
         PermissionBubbleManager* mgr =
             PermissionBubbleManager::FromWebContents(web_contents);
-        mgr->AddRequest(new GeolocationPermissionRequest(
-                this, id, requesting_frame, user_gesture, callback,
-                profile_->GetPrefs()->GetString(prefs::kAcceptLanguages)));
+        if (mgr) {
+          mgr->AddRequest(new GeolocationPermissionRequest(
+                  this, id, requesting_frame, user_gesture, callback,
+                  profile_->GetPrefs()->GetString(prefs::kAcceptLanguages)));
+        }
       } else {
         // setting == ask. Prompt the user.
         QueueController()->CreateInfoBarRequest(