android: Add draw completion for CompositorView

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 f1bc7fb0166f3e7ddcadd7ea3aba51ccc3c07f3b..5482249140cde0af9becb64b4d887e783ec4f003 100644
--- a/chrome/browser/android/compositor/compositor_view.cc
+++ b/chrome/browser/android/compositor/compositor_view.cc
@@ -127,6 +127,11 @@ void CompositorView::DidSwapFrame(int pending_frames) {
   Java_CompositorView_didSwapFrame(env, obj_, pending_frames);
 }
 
+void CompositorView::DidSwapBuffers() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_CompositorView_didSwapBuffers(env, obj_);
+}
+
 ui::UIResourceProvider* CompositorView::GetUIResourceProvider() {
   return compositor_ ? &compositor_->GetUIResourceProvider() : nullptr;
 }