Remove now-unnecessary .obj() in Java method calls.

media/capture/content/android/screen_capture_machine_android.cc

Index: media/capture/content/android/screen_capture_machine_android.cc
diff --git a/media/capture/content/android/screen_capture_machine_android.cc b/media/capture/content/android/screen_capture_machine_android.cc
index df57fa2871f37c1a19973b416ad5eb7a235295c1..f3b2ee90970949b4efd9156143c4c424757d8f7d 100644
--- a/media/capture/content/android/screen_capture_machine_android.cc
+++ b/media/capture/content/android/screen_capture_machine_android.cc
@@ -220,7 +220,7 @@ void ScreenCaptureMachineAndroid::Start(
   DCHECK(!(params.requested_format.frame_size.height() % 2));
 
   const jboolean ret = Java_ScreenCapture_startPrompt(
-      AttachCurrentThread(), j_capture_.obj(),
+      AttachCurrentThread(), j_capture_,
       params.requested_format.frame_size.width(),
       params.requested_format.frame_size.height());
 
@@ -228,7 +228,7 @@ void ScreenCaptureMachineAndroid::Start(
 }
 
 void ScreenCaptureMachineAndroid::Stop(const base::Closure& callback) {
-  Java_ScreenCapture_stopCapture(AttachCurrentThread(), j_capture_.obj());
+  Java_ScreenCapture_stopCapture(AttachCurrentThread(), j_capture_);
 
   callback.Run();
 }