Fix up instance registration with the browser.

content/renderer/pepper/renderer_ppapi_host_impl.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 "content/renderer/pepper/renderer_ppapi_host_impl.h"
 
 #include "base/logging.h"
 #include "content/renderer/pepper/pepper_in_process_resource_creation.h"
 #include "content/renderer/pepper/pepper_in_process_router.h"
 #include "content/renderer/pepper/pepper_plugin_delegate_impl.h"
@@ skipping 61 matching lines @@
   RendererPpapiHostImpl* result = new RendererPpapiHostImpl(
       module, permissions);
 
   // Takes ownership of pointer.
   module->SetEmbedderState(
       scoped_ptr<webkit::ppapi::PluginModule::EmbedderState>(result));
 
   return result;
 }
 
+// static
+RendererPpapiHostImpl* RendererPpapiHostImpl::GetForPPInstance(
+    PP_Instance pp_instance) {
+  PluginInstance* instance = HostGlobals::Get()->GetInstance(pp_instance);
+  if (!instance)
+    return NULL;
+
+  // All modules created by content will have their embedders state be the
+  // host impl.
+  return static_cast<RendererPpapiHostImpl*>(
+      instance->module()->GetEmbedderState());
+}
+
 scoped_ptr< ::ppapi::thunk::ResourceCreationAPI>
 RendererPpapiHostImpl::CreateInProcessResourceCreationAPI(
     webkit::ppapi::PluginInstance* instance) {
   return scoped_ptr< ::ppapi::thunk::ResourceCreationAPI>(
       new PepperInProcessResourceCreation(this, instance));
 }
 
 ppapi::host::PpapiHost* RendererPpapiHostImpl::GetPpapiHost() {
   return ppapi_host_.get();
 }
@@ skipping 30 matching lines @@
     PP_Instance pp_instance) const {
   PluginInstance* instance = HostGlobals::Get()->GetInstance(pp_instance);
   if (!instance)
     return NULL;
   if (instance->module() != module_)
     return NULL;
   return instance;
 }
 
 }  // namespace content