Add a Flash API to get the device ID.

ppapi/proxy/ppb_flash_proxy.cc

Index: ppapi/proxy/ppb_flash_proxy.cc
diff --git a/ppapi/proxy/ppb_flash_proxy.cc b/ppapi/proxy/ppb_flash_proxy.cc
index d2e5cb6edc300ef941b53f1c123647abff2b78c0..18d1f5ab3e3a9f8f06a4aae16fdfdd8bb114cf00 100644
--- a/ppapi/proxy/ppb_flash_proxy.cc
+++ b/ppapi/proxy/ppb_flash_proxy.cc
@@ -222,6 +222,11 @@ void UpdateActivity(PP_Instance instance) {
   // TODO(viettrungluu): Implement me.
 }
 
+PP_Var GetDeviceID(PP_Instance instance) {
+  // TODO(brettw) implement me.
+  return PP_MakeUndefined();
+}
+
 const PPB_Flash_11 flash_interface_11 = {
   &SetInstanceAlwaysOnTop,
   &DrawGlyphs11,
@@ -260,6 +265,22 @@ const PPB_Flash_12_1 flash_interface_12_1 = {
   &UpdateActivity
 };
 
+const PPB_Flash_12_2 flash_interface_12_2 = {
+  &SetInstanceAlwaysOnTop,
+  &DrawGlyphs,
+  &GetProxyForURL,
+  &Navigate,
+  &RunMessageLoop,
+  &QuitMessageLoop,
+  &GetLocalTimeZoneOffset,
+  &GetCommandLineArgs,
+  &PreLoadFontWin,
+  &IsRectTopmost,
+  &InvokePrinting,
+  &UpdateActivity,
+  &GetDeviceID
+};
+
 }  // namespace
 
 PPB_Flash_Proxy::PPB_Flash_Proxy(Dispatcher* dispatcher)
@@ -288,6 +309,11 @@ const PPB_Flash_12_1* PPB_Flash_Proxy::GetInterface12_1() {
   return &flash_interface_12_1;
 }
 
+// static
+const PPB_Flash_12_2* PPB_Flash_Proxy::GetInterface12_2() {
+  return &flash_interface_12_2;
+}
+
 bool PPB_Flash_Proxy::OnMessageReceived(const IPC::Message& msg) {
   // Prevent the dispatcher from going away during a call to Navigate.
   // This must happen OUTSIDE of OnMsgNavigate since the handling code use