Add permissions buts for Pepper plugins.

ppapi/host/ppapi_host.h

Index: ppapi/host/ppapi_host.h
diff --git a/ppapi/host/ppapi_host.h b/ppapi/host/ppapi_host.h
index eb195b87c7f3cc21fc2e80f39e2af0679e500225..7a20c1fe286dee65fba2cc0cb80a00a1a84269a4 100644
--- a/ppapi/host/ppapi_host.h
+++ b/ppapi/host/ppapi_host.h
@@ -14,6 +14,7 @@
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/host/ppapi_host_export.h"
+#include "ppapi/shared_impl/ppapi_permissions.h"
 
 namespace ppapi {
 
@@ -35,9 +36,13 @@ class PPAPI_HOST_EXPORT PpapiHost : public IPC::Sender, public IPC::Listener {
   // The sender is the channel to the plugin for outgoing messages. The factory
   // will be used to receive resource creation messages from the plugin. Both
   // pointers are owned by the caller and must outlive this class.
-  PpapiHost(IPC::Sender* sender, HostFactory* host_factory);
+  PpapiHost(IPC::Sender* sender,
+            HostFactory* host_factory,
+            const PpapiPermissions& perms);
   virtual ~PpapiHost();
 
+  const PpapiPermissions& permissions() const { return permissions_; }
+
   // Sender implementation. Forwards to the sender_.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
 
@@ -66,6 +71,8 @@ class PPAPI_HOST_EXPORT PpapiHost : public IPC::Sender, public IPC::Listener {
   // Non-owning pointer.
   HostFactory* host_factory_;
 
+  PpapiPermissions permissions_;
+
   typedef std::map<PP_Resource, linked_ptr<ResourceHost> > ResourceMap;
   ResourceMap resources_;