First step towards component build for Android.

net/android/network_change_notifier_android.h

 // Copyright (c) 2012 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.
 
 #ifndef NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
 #define NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/synchronization/lock.h"
 #include "net/base/network_change_notifier.h"
 
 namespace net {
 
 class NetworkChangeNotifierAndroidTest;
 
-class NetworkChangeNotifierAndroid : public NetworkChangeNotifier {
+class NET_EXPORT NetworkChangeNotifierAndroid : public NetworkChangeNotifier {
  public:
   virtual ~NetworkChangeNotifierAndroid();
 
   // Called from Java on the UI thread.
   void NotifyObserversOfConnectionTypeChange(
       JNIEnv* env, jobject obj, jint new_connection_type);
   jint GetConnectionType(JNIEnv* env, jobject obj);
 
   static bool Register(JNIEnv* env);
 
@@ skipping 17 matching lines @@
   mutable base::Lock lock_;  // Protects the state below.
   // Written from the UI thread, read from any thread.
   int connection_type_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierAndroid);
 };
 
 }  // namespace net
 
 #endif  // NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_