Implement asynchronous interface/plumbing for GetDefaultPrintSettings.

content/browser/renderer_host/pepper/pepper_message_filter.cc

Index: content/browser/renderer_host/pepper/pepper_message_filter.cc
diff --git a/content/browser/renderer_host/pepper/pepper_message_filter.cc b/content/browser/renderer_host/pepper/pepper_message_filter.cc
index 924176379ca38cfb751c9042ecd9c094fd42309c..793bd05e41ae5b4dd0fbd3c5ea1e16ff1b855395 100644
--- a/content/browser/renderer_host/pepper/pepper_message_filter.cc
+++ b/content/browser/renderer_host/pepper/pepper_message_filter.cc
@@ -37,6 +37,7 @@
 #include "net/base/cert_verifier.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/sys_addrinfo.h"
+#include "ppapi/c/dev/pp_print_settings_dev.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_host_resolver_private.h"
 #include "ppapi/c/private/ppb_net_address_private.h"
@@ -114,7 +115,8 @@ void PepperMessageFilter::OverrideThreadForMessage(
       message.type() == PpapiHostMsg_PPBTCPSocket_ConnectWithNetAddress::ID ||
       message.type() == PpapiHostMsg_PPBUDPSocket_Bind::ID ||
       message.type() == PpapiHostMsg_PPBTCPServerSocket_Listen::ID ||
-      message.type() == PpapiHostMsg_PPBHostResolver_Resolve::ID) {
+      message.type() == PpapiHostMsg_PPBHostResolver_Resolve::ID ||
+      message.type() == PpapiHostMsg_PPBPInstance_GetDefaultPrintSettings::ID) {
     *thread = BrowserThread::UI;
   } else if (message.type() == PepperMsg_GetDeviceID::ID ||
              message.type() == PpapiHostMsg_PPBFlashDeviceID_Get::ID) {
@@ -183,6 +185,10 @@ if (process_type_ == PLUGIN) {
     IPC_MESSAGE_HANDLER(PepperMsg_GetDeviceID, OnGetDeviceID)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBFlashDeviceID_Get, OnGetDeviceIDAsync)
 
+    // PPBInstance messages.
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBPInstance_GetDefaultPrintSettings,
+                        OnGetDefaultPrintSettings);
+
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
@@ -714,6 +720,15 @@ void PepperMessageFilter::OnGetDeviceIDAsync(int32_t routing_id,
                                               result));
 }
 
+void PepperMessageFilter::OnGetDefaultPrintSettings(int32_t routing_id,
+                                                    PP_Instance instance) {
+  PP_PrintSettings_Dev settings;
+  int32_t result;
+  // TODO(raymes): Actually get the settings here.
+  Send(new PpapiMsg_PPBInstance_GetDefaultPrintSettingsComplete(
+      ppapi::API_ID_PPB_INSTANCE, routing_id, instance, settings, result));
+}
+
 void PepperMessageFilter::GetFontFamiliesComplete(
     IPC::Message* reply_msg,
     scoped_ptr<base::ListValue> result) {