Add a size parameter to SharedMemoryHandle.

ui/surface/transport_dib_posix.cc

Index: ui/surface/transport_dib_posix.cc
diff --git a/ui/surface/transport_dib_posix.cc b/ui/surface/transport_dib_posix.cc
index 5f68581d7d0de37d40e1b7b106033674ba81270b..71f8d569bea87976f56a2a62e2252631dc553eb5 100644
--- a/ui/surface/transport_dib_posix.cc
+++ b/ui/surface/transport_dib_posix.cc
@@ -79,10 +79,8 @@ bool TransportDIB::Map() {
   if (memory())
     return true;
 
-  size_t size;
-  bool success = base::SharedMemory::GetSizeFromSharedMemoryHandle(
-      shared_memory_.handle(), &size);
-  if (!success || !shared_memory_.Map(size))
+  size_t size = shared_memory_.handle().GetSize();
+  if (!shared_memory_.Map(size))
     return false;
 
   size_ = size;