Give base::SharedMemory::CreateAnonymous an executable flag

base/shared_memory.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_SHARED_MEMORY_H_
 #define BASE_SHARED_MEMORY_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 61 matching lines @@
   static SharedMemoryHandle NULLHandle();
 
   // Closes a shared memory handle.
   static void CloseHandle(const SharedMemoryHandle& handle);
 
   // Creates and maps an anonymous shared memory segment of size size.
   // Returns true on success and false on failure.
   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.
   bool Delete(const std::string& name);
 
   // Opens a shared memory segment based on a name.
   // If read_only is true, opens for read-only access.
   // Returns true on success, false on failure.
   bool Open(const std::string& name, bool read_only);
 
@@ skipping 124 matching lines @@
   }
 
  private:
   SharedMemory* shared_memory_;
   DISALLOW_COPY_AND_ASSIGN(SharedMemoryAutoLock);
 };
 
 }  // namespace base
 
 #endif  // BASE_SHARED_MEMORY_H_