aw: Fix dcheck failure on start up

android_webview/native/aw_gl_functor.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "android_webview/native/aw_gl_functor.h"
 
 #include "android_webview/public/browser/draw_gl.h"
 #include "content/public/browser/browser_thread.h"
 #include "jni/AwGLFunctor_jni.h"
 
@@ skipping 69 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return reinterpret_cast<intptr_t>(&render_thread_manager_);
 }
 
 static jint GetNativeInstanceCount(JNIEnv* env, const JavaParamRef<jclass>&) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return g_instance_count;
 }
 
 static jlong GetAwDrawGLFunction(JNIEnv* env, const JavaParamRef<jclass>&) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return reinterpret_cast<intptr_t>(&DrawGLFunction);
 }
 
 static jlong Create(JNIEnv* env,
                     const JavaParamRef<jclass>&,
                     const base::android::JavaParamRef<jobject>& obj) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return reinterpret_cast<intptr_t>(
       new AwGLFunctor(JavaObjectWeakGlobalRef(env, obj)));
 }
 
 bool RegisterAwGLFunctor(JNIEnv* env) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webview