First step towards component build for Android.

content/public/app/content_main.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 CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 #define CONTENT_PUBLIC_APP_CONTENT_MAIN_H_
 
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 
@@ skipping 19 matching lines @@
 // content_main_win.h
 CONTENT_EXPORT int ContentMain(HINSTANCE instance,
                                sandbox::SandboxInterfaceInfo* sandbox_info,
                                ContentMainDelegate* delegate);
 #elif defined(OS_ANDROID)
 // In the Android, the content main starts from ContentMain.java, This function
 // provides a way to set the |delegate| as ContentMainDelegate for
 // ContentMainRunner.
 // This should only be called once before ContentMainRunner actually running.
 // The ownership of |delegate| is transferred.
-void SetContentMainDelegate(ContentMainDelegate* delegate);
+CONTENT_EXPORT void SetContentMainDelegate(ContentMainDelegate* delegate);
 #else
 CONTENT_EXPORT int ContentMain(int argc,
                                const char** argv,
                                ContentMainDelegate* delegate);
 #endif  // defined(OS_WIN)
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_APP_CONTENT_MAIN_H_