Give base::SharedMemory::CreateAnonymous an executable flag

base/shared_memory.h

Index: base/shared_memory.h
diff --git a/base/shared_memory.h b/base/shared_memory.h
index c9dfd6eb05c2357f2bfded6c283dfb8b8638c213..52c2bd5c111f47a21fe3b46488838d014c635f1b 100644
--- a/base/shared_memory.h
+++ b/base/shared_memory.h
@@ -79,16 +79,19 @@ class BASE_EXPORT SharedMemory {
   bool CreateAndMapAnonymous(uint32 size);
 
   // Creates an anonymous shared memory segment of size size.
+  // If executable is true, mappings might need to be made executable later.
   // Returns true on success and false on failure.
-  bool CreateAnonymous(uint32 size);
+  bool CreateAnonymous(uint32 size, bool executable);
 
   // Creates or opens a shared memory segment based on a name.
   // If open_existing is true, and the shared memory already exists,
   // opens the existing shared memory and ignores the size parameter.
   // If open_existing is false, shared memory must not exist.
   // size is the size of the block to be created.
+  // If executable is true, mappings might need to be made executable later.
   // Returns true on success, false on failure.
-  bool CreateNamed(const std::string& name, bool open_existing, uint32 size);
+  bool CreateNamed(const std::string& name, bool open_existing,
+                   uint32 size, bool executable);
 
   // Deletes resources associated with a shared memory segment based on name.
   // Not all platforms require this call.