Remove CreateAndOpenTemporaryShmemFile().

It had exactly one use.

R=brettw@chromium.org

Review URL: https://codereview.chromium.org/205273004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@258414 0039d316-1c4b-4281-b951-d872f2087c98

base/file_util.h

@@ -401,12 +401,6 @@ BASE_EXPORT bool GetFileSystemType(const FilePath& path, FileSystemType* type);
 // you intend to create executable shmem segments so this function can find
 // an appropriate location.
 BASE_EXPORT bool GetShmemTempDir(bool executable, FilePath* path);
-
-// Like above but for shmem files.  Only useful for POSIX.
-// The executable flag says the file needs to support using
-// mprotect with PROT_EXEC after mapping.
-BASE_EXPORT FILE* CreateAndOpenTemporaryShmemFile(FilePath* path,
-                                                  bool executable);
 #endif
 
 }  // namespace base

base/file_util_mac.mm

@@ -49,8 +49,4 @@ FilePath GetHomeDir() {
   return FilePath("/tmp");
 }
 
-bool GetShmemTempDir(bool executable, base::FilePath* path) {
-  return GetTempDir(path);
-}
-
 }  // namespace base

base/file_util_posix.cc

@@ -820,9 +820,8 @@ int GetMaximumPathComponentLength(const FilePath& path) {
   return pathconf(path.value().c_str(), _PC_NAME_MAX);
 }
 
-#if !defined(OS_MACOSX) && !defined(OS_ANDROID)
-// This is implemented in file_util_mac.mm and file_util_android.cc for those
-// platforms.
+#if !defined(OS_ANDROID)
+// This is implemented in file_util_android.cc for that platform.
 bool GetShmemTempDir(bool executable, FilePath* path) {
 #if defined(OS_LINUX)
   bool use_dev_shm = true;
@@ -837,15 +836,7 @@ bool GetShmemTempDir(bool executable, FilePath* path) {
 #endif
   return GetTempDir(path);
 }
-#endif  // !defined(OS_MACOSX) && !defined(OS_ANDROID)
-
-FILE* CreateAndOpenTemporaryShmemFile(FilePath* path, bool executable) {
-  FilePath directory;
-  if (!GetShmemTempDir(executable, &directory))
-    return NULL;
-
-  return CreateAndOpenTemporaryFileInDir(directory, path);
-}
+#endif  // !defined(OS_ANDROID)
 
 // -----------------------------------------------------------------------------
 

base/memory/shared_memory_posix.cc

@@ -138,7 +138,9 @@ bool SharedMemory::Create(const SharedMemoryCreateOptions& options) {
     DCHECK(!options.open_existing_deprecated);
     // Q: Why not use the shm_open() etc. APIs?
     // A: Because they're limited to 4mb on OS X.  FFFFFFFUUUUUUUUUUU
-    fp.reset(base::CreateAndOpenTemporaryShmemFile(&path, options.executable));
+    FilePath directory;
+    if (GetShmemTempDir(options.executable, &directory))
+      fp.reset(CreateAndOpenTemporaryFileInDir(directory, &path));
 
     if (fp) {
       // Also open as readonly so that we can ShareReadOnlyToProcess.