Add an interface for Flash to clear its data.

content/ppapi_plugin/ppapi_thread.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/ppapi_plugin/ppapi_thread.h"
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/process_util.h"
 #include "base/rand_util.h"
 #include "base/stringprintf.h"
 #include "content/common/child_process.h"
 #include "content/common/child_process_messages.h"
 #include "content/ppapi_plugin/broker_process_dispatcher.h"
 #include "content/ppapi_plugin/plugin_process_dispatcher.h"
 #include "content/ppapi_plugin/ppapi_webkitplatformsupport_impl.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/sandbox_init.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_sync_channel.h"
 #include "ppapi/c/dev/ppp_network_state_dev.h"
 #include "ppapi/c/pp_errors.h"
+#include "ppapi/c/private/ppp_flash_clear_site_data.h"
 #include "ppapi/c/ppp.h"
 #include "ppapi/proxy/plugin_globals.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/interface_list.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 
 #if defined(OS_WIN)
 #include "sandbox/src/sandbox.h"
 #elif defined(OS_MACOSX)
 #include "content/common/sandbox_init_mac.h"
@@ skipping 42 matching lines @@
 // dispatching, then uses the message router. We don't actually need any of
 // this so this function just overrides that one.
 //
 // Note that this function is called only for messages from the channel to the
 // browser process. Messages from the renderer process are sent via a different
 // channel that ends up at Dispatcher::OnMessageReceived.
 bool PpapiThread::OnMessageReceived(const IPC::Message& msg) {
   IPC_BEGIN_MESSAGE_MAP(PpapiThread, msg)
     IPC_MESSAGE_HANDLER(PpapiMsg_LoadPlugin, OnMsgLoadPlugin)
     IPC_MESSAGE_HANDLER(PpapiMsg_CreateChannel, OnMsgCreateChannel)
+    IPC_MESSAGE_HANDLER(PpapiMsg_ClearSiteData, OnMsgClearSiteData)
+
     IPC_MESSAGE_HANDLER_GENERIC(PpapiMsg_PPBTCPServerSocket_ListenACK,
                                 OnPluginDispatcherMessageReceived(msg))
     IPC_MESSAGE_HANDLER_GENERIC(PpapiMsg_PPBTCPServerSocket_AcceptACK,
                                 OnPluginDispatcherMessageReceived(msg))
     IPC_MESSAGE_HANDLER_GENERIC(PpapiMsg_PPBTCPSocket_ConnectACK,
                                 OnPluginDispatcherMessageReceived(msg))
     IPC_MESSAGE_HANDLER_GENERIC(PpapiMsg_PPBTCPSocket_SSLHandshakeACK,
                                 OnPluginDispatcherMessageReceived(msg))
     IPC_MESSAGE_HANDLER_GENERIC(PpapiMsg_PPBTCPSocket_ReadACK,
                                 OnPluginDispatcherMessageReceived(msg))
@@ skipping 152 matching lines @@
   if (!library_.is_valid() ||  // Plugin couldn't be loaded.
       !SetupRendererChannel(host_process_handle, renderer_id,
                             &channel_handle)) {
     Send(new PpapiHostMsg_ChannelCreated(IPC::ChannelHandle()));
     return;
   }
 
   Send(new PpapiHostMsg_ChannelCreated(channel_handle));
 }
 
+void PpapiThread::OnMsgClearSiteData(const std::string& site,
+                                     uint64 flags,
+                                     uint64 max_age) {
+  Send(new PpapiHostMsg_ClearSiteDataResult(
+      ClearSiteData(site, flags, max_age)));
+}
+
 void PpapiThread::OnMsgSetNetworkState(bool online) {
   if (!get_plugin_interface_)
     return;
   const PPP_NetworkState_Dev* ns = static_cast<const PPP_NetworkState_Dev*>(
       get_plugin_interface_(PPP_NETWORK_STATE_DEV_INTERFACE));
   if (ns)
     ns->SetOnLine(PP_FromBool(online));
 }
 
 void PpapiThread::OnPluginDispatcherMessageReceived(const IPC::Message& msg) {
   // The first parameter should be a plugin dispatcher ID.
   PickleIterator iter(msg);
   uint32 id = 0;
   if (!msg.ReadUInt32(&iter, &id)) {
     NOTREACHED();
     return;
   }
   std::map<uint32, ppapi::proxy::PluginDispatcher*>::iterator dispatcher =
       plugin_dispatchers_.find(id);
   if (dispatcher != plugin_dispatchers_.end())
     dispatcher->second->OnMessageReceived(msg);
 }
 
+bool PpapiThread::ClearSiteData(const std::string& site,
+                                uint64 flags,
+                                uint64 max_age) {
+  if (!get_plugin_interface_)
+    return false;
+  const PPP_Flash_ClearSiteData_1_0* clear_interface =
+      static_cast<const PPP_Flash_ClearSiteData_1_0*>(
+          get_plugin_interface_(PPP_FLASH_CLEARSITEDATA_INTERFACE_1_0));
+  if (!clear_interface)
+    return false;
+
+  clear_interface->ClearSiteData(site.empty() ? NULL : site.c_str(),
+                                 flags, max_age);
+  return true;
+}
+
 bool PpapiThread::SetupRendererChannel(base::ProcessHandle host_process_handle,
                                        int renderer_id,
                                        IPC::ChannelHandle* handle) {
   DCHECK(is_broker_ == (connect_instance_func_ != NULL));
   DCHECK(is_broker_ == (get_plugin_interface_ == NULL));
   IPC::ChannelHandle plugin_handle;
   plugin_handle.name = IPC::Channel::GenerateVerifiedChannelID(
       StringPrintf("%d.r%d", base::GetCurrentProcId(), renderer_id));
 
   ppapi::proxy::ProxyChannel* dispatcher = NULL;
@@ skipping 32 matching lines @@
 
   // From here, the dispatcher will manage its own lifetime according to the
   // lifetime of the attached channel.
   return true;
 }
 
 void PpapiThread::SavePluginName(const FilePath& path) {
   ppapi::proxy::PluginGlobals::Get()->set_plugin_name(
       path.BaseName().AsUTF8Unsafe());
 }