Merge definitions of PlatformFileToInt and IntToPlatformFile to one place.

ppapi/proxy/ppb_broker_proxy.cc

Index: ppapi/proxy/ppb_broker_proxy.cc
diff --git a/ppapi/proxy/ppb_broker_proxy.cc b/ppapi/proxy/ppb_broker_proxy.cc
index d65af6685620944970038bf39a1b641031e79b5a..868bc653de4898a821457b558ae4e6c3b6f13335 100644
--- a/ppapi/proxy/ppb_broker_proxy.cc
+++ b/ppapi/proxy/ppb_broker_proxy.cc
@@ -20,30 +20,6 @@ using ppapi::thunk::PPB_Broker_API;
 namespace ppapi {
 namespace proxy {
 
-namespace {
-
-base::PlatformFile IntToPlatformFile(int32_t handle) {
-#if defined(OS_WIN)
-  return reinterpret_cast<HANDLE>(static_cast<intptr_t>(handle));
-#elif defined(OS_POSIX)
-  return handle;
-#else
-  #error Not implemented.
-#endif
-}
-
-int32_t PlatformFileToInt(base::PlatformFile handle) {
-#if defined(OS_WIN)
-  return static_cast<int32_t>(reinterpret_cast<intptr_t>(handle));
-#elif defined(OS_POSIX)
-  return handle;
-#else
-  #error Not implemented.
-#endif
-}
-
-}  // namespace
-
 class Broker : public PPB_Broker_API, public Resource {
  public:
   explicit Broker(const HostResource& resource);