Generate dumps for relevant renderers when users kill a hung pepper plugin.

ppapi/host/ppapi_host.cc

 // 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.
 
 #include "ppapi/host/ppapi_host.h"
 
 #include "base/logging.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/host/host_factory.h"
 #include "ppapi/host/host_message_context.h"
 #include "ppapi/host/instance_message_filter.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/resource_message_params.h"
 #include "ppapi/shared_impl/host_resource.h"
+#include "ppapi/shared_impl/ppapi_message_tracker.h"
 
 namespace ppapi {
 namespace host {
 
 namespace {
 
 // Put a cap on the maximum number of resources so we don't explode if the
 // renderer starts spamming us.
 const size_t kMaxResourcesPerPlugin = 1 << 14;
 
 }  // namespace
 
 PpapiHost::PpapiHost(IPC::Sender* sender,
                      const PpapiPermissions& perms)
     : sender_(sender),
       permissions_(perms) {
 }
 
 PpapiHost::~PpapiHost() {
   // Delete these explicitly before destruction since then the host is still
   // technically alive in case one of the filters accesses us from the
   // destructor.
   instance_message_filters_.clear();
 }
 
 bool PpapiHost::Send(IPC::Message* msg) {
+  ScopedTrackPpapiMessage track_ppapi_message;
   return sender_->Send(msg);
 }
 
 bool PpapiHost::OnMessageReceived(const IPC::Message& msg) {
+  ScopedTrackPpapiMessage track_ppapi_message;
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PpapiHost, msg)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_ResourceCall,
                         OnHostMsgResourceCall)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_ResourceCreated,
                         OnHostMsgResourceCreated)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_ResourceDestroyed,
                         OnHostMsgResourceDestroyed)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
@@ skipping 93 matching lines @@
   resources_.erase(found);
 }
 
 ResourceHost* PpapiHost::GetResourceHost(PP_Resource resource) {
   ResourceMap::iterator found = resources_.find(resource);
   return found == resources_.end() ? NULL : found->second.get();
 }
 
 }  // namespace host
 }  // namespace ppapi