Make kClearSiteDataOnExit work correctly for Flash in multi-profile.

content/plugin/plugin_channel.h

Index: content/plugin/plugin_channel.h
===================================================================
--- content/plugin/plugin_channel.h	(revision 90755)
+++ content/plugin/plugin_channel.h	(working copy)
@@ -50,6 +50,9 @@
   bool incognito() { return incognito_; }
   void set_incognito(bool value) { incognito_ = value; }
 
+  bool save_local_state() { return save_local_state_; }
+  void set_save_local_state(bool value) { save_local_state_ = value; }
+
 #if defined(OS_POSIX)
   int renderer_fd() const { return channel_->GetClientFileDescriptor(); }
 #endif
@@ -93,6 +96,7 @@
   int in_send_;  // Tracks if we're in a Send call.
   bool log_messages_;  // True if we should log sent and received messages.
   bool incognito_; // True if the renderer is in incognito mode.
+  bool save_local_state_;  // True if the renderer should save local state.
   scoped_refptr<MessageFilter> filter_;  // Handles the modal dialog events.
 
   DISALLOW_COPY_AND_ASSIGN(PluginChannel);