Simplify the user agent code some more since after r255534 it's not affected by the site's URL.

android_webview/native/aw_settings.cc

 // Copyright (c) 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 "android_webview/native/aw_settings.h"
 
 #include "android_webview/browser/renderer_host/aw_render_view_host_ext.h"
+#include "android_webview/common/aw_content_client.h"
 #include "android_webview/native/aw_contents.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
 #include "base/supports_user_data.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
-#include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "jni/AwSettings_jni.h"
-#include "webkit/common/user_agent/user_agent.h"
 #include "webkit/common/webpreferences.h"
 
 using base::android::ConvertJavaStringToUTF16;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ScopedJavaLocalRef;
 
 namespace android_webview {
 
 const void* kAwSettingsUserDataKey = &kAwSettingsUserDataKey;
 
@@ skipping 303 matching lines @@
 }
 
 static jlong Init(JNIEnv* env,
                   jobject obj,
                   jlong web_contents) {
   AwSettings* settings = new AwSettings(env, obj, web_contents);
   return reinterpret_cast<intptr_t>(settings);
 }
 
 static jstring GetDefaultUserAgent(JNIEnv* env, jclass clazz) {
-  return base::android::ConvertUTF8ToJavaString(
-      env, content::GetUserAgent(GURL())).Release();
+  return base::android::ConvertUTF8ToJavaString(env, GetUserAgent()).Release();
 }
 
 bool RegisterAwSettings(JNIEnv* env) {
   return RegisterNativesImpl(env) >= 0;
 }
 
 }  // namespace android_webview