janitorial: browser_render_process_host header/lint cleanup. (try 2)

chrome/renderer/render_thread.h

Index: chrome/renderer/render_thread.h
===================================================================
--- chrome/renderer/render_thread.h	(revision 9603)
+++ chrome/renderer/render_thread.h	(working copy)
@@ -7,23 +7,22 @@
 
 #include <vector>
 
-#include "base/file_path.h"
 #include "base/gfx/native_widget_types.h"
-#include "base/ref_counted.h"
 #include "base/shared_memory.h"
 #include "base/task.h"
 #include "base/thread.h"
 #include "build/build_config.h"
 #include "chrome/common/ipc_sync_channel.h"
 #include "chrome/common/message_router.h"
-#include "chrome/common/modal_dialog_event.h"
 
+class FilePath;
+class NotificationService;
+class RenderDnsMaster;
 class SkBitmap;
+class UserScriptSlave;
 class VisitedLinkSlave;
+struct ModalDialogEvent;
 struct WebPreferences;
-class RenderDnsMaster;
-class NotificationService;
-class UserScriptSlave;
 
 // The RenderThreadBase is the minimal interface that a RenderView/Widget
 // expects from a render thread. The interface basically abstracts a way to send