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

chrome/browser/android/compositor/compositor_view.cc

Index: chrome/browser/android/compositor/compositor_view.cc
diff --git a/chrome/browser/android/compositor/compositor_view.cc b/chrome/browser/android/compositor/compositor_view.cc
index acb5fc3c89ba77840d0f296c40cf8b822c9b0f8c..ab69538f54826b69b58bae907dc73827542b9213 100644
--- a/chrome/browser/android/compositor/compositor_view.cc
+++ b/chrome/browser/android/compositor/compositor_view.cc
@@ -122,13 +122,12 @@ base::android::ScopedJavaLocalRef<jobject> CompositorView::GetResourceManager(
 void CompositorView::UpdateLayerTreeHost() {
   JNIEnv* env = base::android::AttachCurrentThread();
   // TODO(wkorman): Rename JNI interface to onCompositorUpdateLayerTreeHost.
-  Java_CompositorView_onCompositorLayout(env, obj_.obj());
+  Java_CompositorView_onCompositorLayout(env, obj_);
 }
 
 void CompositorView::OnSwapBuffersCompleted(int pending_swap_buffers) {
   JNIEnv* env = base::android::AttachCurrentThread();
-  Java_CompositorView_onSwapBuffersCompleted(env, obj_.obj(),
-                                             pending_swap_buffers);
+  Java_CompositorView_onSwapBuffersCompleted(env, obj_, pending_swap_buffers);
 }
 
 ui::UIResourceProvider* CompositorView::GetUIResourceProvider() {
@@ -255,7 +254,7 @@ void CompositorView::BrowserChildProcessHostDisconnected(
     JNIEnv* env = base::android::AttachCurrentThread();
     compositor_->SetSurface(nullptr);
     Java_CompositorView_onJellyBeanSurfaceDisconnectWorkaround(
-        env, obj_.obj(), overlay_video_mode_);
+        env, obj_, overlay_video_mode_);
   }
 }