Remove all uses of the global Dispatcher Get function.

ppapi/proxy/ppb_url_request_info_proxy.cc

Index: ppapi/proxy/ppb_url_request_info_proxy.cc
===================================================================
--- ppapi/proxy/ppb_url_request_info_proxy.cc	(revision 74021)
+++ ppapi/proxy/ppb_url_request_info_proxy.cc	(working copy)
@@ -118,7 +118,7 @@
   return PP_TRUE;
 }
 
-const PPB_URLRequestInfo ppb_urlrequestinfo = {
+const PPB_URLRequestInfo urlrequestinfo_interface = {
   &Create,
   &IsURLRequestInfo,
   &SetProperty,
@@ -126,6 +126,11 @@
   &AppendFileToBody
 };
 
+InterfaceProxy* CreateURLRequestInfoProxy(Dispatcher* dispatcher,
+                                          const void* target_interface) {
+  return new PPB_URLRequestInfo_Proxy(dispatcher, target_interface);
+}
+
 }  // namespace
 
 PPB_URLRequestInfo_Proxy::PPB_URLRequestInfo_Proxy(
@@ -137,14 +142,18 @@
 PPB_URLRequestInfo_Proxy::~PPB_URLRequestInfo_Proxy() {
 }
 
-const void* PPB_URLRequestInfo_Proxy::GetSourceInterface() const {
-  return &ppb_urlrequestinfo;
+// static
+const InterfaceProxy::Info* PPB_URLRequestInfo_Proxy::GetInfo() {
+  static const Info info = {
+    &urlrequestinfo_interface,
+    PPB_URLREQUESTINFO_INTERFACE,
+    INTERFACE_ID_PPB_URL_REQUEST_INFO,
+    false,
+    &CreateURLRequestInfoProxy,
+  };
+  return &info;
 }
 
-InterfaceID PPB_URLRequestInfo_Proxy::GetInterfaceId() const {
-  return INTERFACE_ID_PPB_URL_REQUEST_INFO;
-}
-
 bool PPB_URLRequestInfo_Proxy::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_URLRequestInfo_Proxy, msg)