Add an interface for Flash to clear its data.

content/ppapi_plugin/ppapi_thread.cc

Index: content/ppapi_plugin/ppapi_thread.cc
diff --git a/content/ppapi_plugin/ppapi_thread.cc b/content/ppapi_plugin/ppapi_thread.cc
index 54f9af8104e173a185b856edb49bed3590769af0..b779bda2276aac8046dce56eeb2a4bec2c5d5ee8 100644
--- a/content/ppapi_plugin/ppapi_thread.cc
+++ b/content/ppapi_plugin/ppapi_thread.cc
@@ -21,6 +21,7 @@
 #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"
@@ -83,6 +84,8 @@ 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,
@@ -255,6 +258,13 @@ void PpapiThread::OnMsgCreateChannel(base::ProcessHandle host_process_handle,
   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;
@@ -278,6 +288,22 @@ void PpapiThread::OnPluginDispatcherMessageReceived(const IPC::Message& msg) {
     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) {