Pass the frame instead of the WebContents through RunBluetoothChooser.

chrome/browser/ui/android/bluetooth_chooser_android.cc

Index: chrome/browser/ui/android/bluetooth_chooser_android.cc
diff --git a/chrome/browser/ui/android/bluetooth_chooser_android.cc b/chrome/browser/ui/android/bluetooth_chooser_android.cc
index 5094a9400f2828ed25928f4f1bd5d22cb75775df..6c66ee9072d9aa99c9b8254606e5a950163c60b0 100644
--- a/chrome/browser/ui/android/bluetooth_chooser_android.cc
+++ b/chrome/browser/ui/android/bluetooth_chooser_android.cc
@@ -20,11 +20,13 @@ using base::android::ConvertUTF16ToJavaString;
 using base::android::ScopedJavaLocalRef;
 
 BluetoothChooserAndroid::BluetoothChooserAndroid(
-    content::WebContents* web_contents,
+    content::RenderFrameHost* frame,
     const EventHandler& event_handler,
     const url::Origin& origin)
     : event_handler_(event_handler) {
   DCHECK(!origin.unique());
+  content::WebContents* web_contents =
+      content::WebContents::FromRenderFrameHost(frame);
   base::android::ScopedJavaLocalRef<jobject> window_android =
       content::ContentViewCore::FromWebContents(
           web_contents)->GetWindowAndroid()->GetJavaObject();