Resolves layering violation in SynchronousCompositorHost creation

content/browser/web_contents/web_contents_android.cc

 // Copyright 2013 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 "content/browser/web_contents/web_contents_android.h"
 
 #include <stdint.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 229 matching lines @@
 }
 
 // static
 bool WebContentsAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 WebContentsAndroid::WebContentsAndroid(WebContentsImpl* web_contents)
     : web_contents_(web_contents),
       navigation_controller_(&(web_contents->GetController())),
-      synchronous_compositor_client_(nullptr),
       weak_factory_(this) {
   g_allocated_web_contents_androids.Get().insert(this);
   JNIEnv* env = AttachCurrentThread();
   obj_.Reset(env,
              Java_WebContentsImpl_create(env, reinterpret_cast<intptr_t>(this),
                                          navigation_controller_.GetJavaObject())
                  .obj());
   RendererPreferences* prefs = web_contents_->GetMutableRendererPrefs();
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   prefs->network_contry_iso =
@@ skipping 455 matching lines @@
       env, *obj, *callback, id, http_status_code, jurl, jbitmaps, jsizes);
 }
 
 void WebContentsAndroid::SetMediaSession(
     const ScopedJavaLocalRef<jobject>& j_media_session) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_WebContentsImpl_setMediaSession(env, obj_, j_media_session);
 }
 
 }  // namespace content