Convert the async device ID getter to a chrome resource host

content/browser/ppapi_plugin_process_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 "content/browser/ppapi_plugin_process_host.h"
 
 #include <string>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
@@ skipping 54 matching lines @@
  private:
   PpapiPluginProcessHost* const process_host_;
 };
 
 PpapiPluginProcessHost::~PpapiPluginProcessHost() {
   DVLOG(1) << "PpapiPluginProcessHost" << (is_broker_ ? "[broker]" : "")
            << "~PpapiPluginProcessHost()";
   CancelRequests();
 }
 
+// static
 PpapiPluginProcessHost* PpapiPluginProcessHost::CreatePluginHost(
     const content::PepperPluginInfo& info,
     const FilePath& profile_data_directory,
     net::HostResolver* host_resolver) {
   PpapiPluginProcessHost* plugin_host = new PpapiPluginProcessHost(
       info, profile_data_directory, host_resolver);
   if (plugin_host->Init(info))
     return plugin_host;
 
   NOTREACHED();  // Init is not expected to fail.
   return NULL;
 }
 
+// static
 PpapiPluginProcessHost* PpapiPluginProcessHost::CreateBrokerHost(
     const content::PepperPluginInfo& info) {
   PpapiPluginProcessHost* plugin_host =
       new PpapiPluginProcessHost();
   if (plugin_host->Init(info))
     return plugin_host;
 
   NOTREACHED();  // Init is not expected to fail.
   return NULL;
 }
 
+// static
+void PpapiPluginProcessHost::DidCreateOutOfProcessInstance(
+    int plugin_process_id,
+    int32 pp_instance,
+    int render_process_id,
+    int render_view_id) {
+  for (PpapiPluginProcessHostIterator iter; !iter.Done(); ++iter) {
+    if (iter->process_.get() &&
+        iter->process_->GetData().id == plugin_process_id) {
+      // Found the plugin.
+      iter->host_impl_->AddInstanceForView(pp_instance,
+                                           render_process_id, render_view_id);
+      return;
+    }
+  }
+  // We'll see this passed with a 0 process ID for the browser tag stuff that
+  // is currently in the process of being removed.
+  //
+  // TODO(brettw) When old browser tag impl is removed
+  // (PepperPluginDelegateImpl::CreateBrowserPluginModule passes a 0 plugin
+  // process ID) this should be converted to a NOTREACHED().
+  DCHECK(plugin_process_id == 0)
+      << "Renderer sent a bad plugin process host ID";
+}
+
+// static
+void PpapiPluginProcessHost::DidDeleteOutOfProcessInstance(
+    int plugin_process_id,
+    int32 pp_instance) {
+  for (PpapiPluginProcessHostIterator iter; !iter.Done(); ++iter) {
+    if (iter->process_.get() &&
+        iter->process_->GetData().id == plugin_process_id) {
+      // Found the plugin.
+      iter->host_impl_->DeleteInstanceForView(pp_instance);
+      return;
+    }
+  }
+  // Note: It's possible that the plugin process has already been deleted by
+  // the time this message is received. For example, it could have crashed.
+  // That's OK, we can just ignore this message.
+}
+
 bool PpapiPluginProcessHost::Send(IPC::Message* message) {
   return process_->Send(message);
 }
 
 void PpapiPluginProcessHost::OpenChannelToPlugin(Client* client) {
   if (process_->GetHost()->IsChannelOpening()) {
     // The channel is already in the process of being opened.  Put
     // this "open channel" request into a queue of requests that will
     // be run once the channel is open.
     pending_requests_.push_back(client);
@@ skipping 19 matching lines @@
 
   ppapi::PpapiPermissions permissions(info.permissions);
   host_impl_ = new content::BrowserPpapiHostImpl(this, permissions);
 
   file_filter_ = new PepperTrustedFileMessageFilter(
       process_->GetData().id, info.name, profile_data_directory);
 
   process_->GetHost()->AddFilter(filter_.get());
   process_->GetHost()->AddFilter(file_filter_.get());
   process_->GetHost()->AddFilter(host_impl_.get());
+
+  content::GetContentClient()->browser()->DidCreatePpapiPlugin(host_impl_);
 }
 
 PpapiPluginProcessHost::PpapiPluginProcessHost()
     : is_broker_(true) {
   process_.reset(new BrowserChildProcessHostImpl(
       content::PROCESS_TYPE_PPAPI_BROKER, this));
 
   ppapi::PpapiPermissions permissions;  // No permissions.
   host_impl_ = new content::BrowserPpapiHostImpl(this, permissions);
 }
@@ skipping 157 matching lines @@
   if (sent_requests_.empty())
     return;
 
   // All requests should be processed FIFO, so the next item in the
   // sent_requests_ queue should be the one that the plugin just created.
   Client* client = sent_requests_.front();
   sent_requests_.pop();
 
   client->OnPpapiChannelOpened(channel_handle, process_->GetData().id);
 }