3 files changed, 2 insertions, 7 deletions
diff --git a/base/files/dir_reader_fallback.h b/base/files/dir_reader_fallback.h
index 4bc199a922..d44c2279e4 100644
--- a/base/files/dir_reader_fallback.h
+++ b/base/files/dir_reader_fallback.h
@@ -11,7 +11,7 @@ class DirReaderFallback {
  public:
   // Open a directory. If |IsValid| is true, then |Next| can be called to start
   // the iteration at the beginning of the directory.
-  explicit DirReaderFallback(const char* /* directory_path */) {}
+  explicit DirReaderFallback(const char* directory_path) {}
 
   // After construction, IsValid returns true iff the directory was
   // successfully opened.
diff --git a/base/files/file_path.cc b/base/files/file_path.cc
index 9f67f9bc49..8f7fcc2c58 100644
--- a/base/files/file_path.cc
+++ b/base/files/file_path.cc
@@ -53,8 +53,6 @@ StringPieceType::size_type FindDriveLetter(StringPieceType path) {
        (path[0] >= L'a' && path[0] <= L'z'))) {
     return 1;
   }
-#else
-  (void)path;  // Avoid an unused warning.
 #endif  // FILE_PATH_USES_DRIVE_LETTERS
   return StringType::npos;
 }
@@ -1328,7 +1326,6 @@ FilePath FilePath::NormalizePathSeparatorsTo(CharType separator) const {
   }
   return FilePath(copy);
 #else
-  (void)separator;  // Avoid an unused warning.
   return *this;
 #endif
 }
diff --git a/base/files/file_util_posix.cc b/base/files/file_util_posix.cc
index a03ca8d8d8..3501e241e9 100644
--- a/base/files/file_util_posix.cc
+++ b/base/files/file_util_posix.cc
@@ -628,7 +628,7 @@ bool CreateTemporaryDirInDir(const FilePath& base_dir,
   return CreateTemporaryDirInDirImpl(base_dir, mkdtemp_template, new_dir);
 }
 
-bool CreateNewTempDirectory(const FilePath::StringType& /*prefix*/,
+bool CreateNewTempDirectory(const FilePath::StringType& prefix,
                             FilePath* new_temp_path) {
   FilePath tmpdir;
   if (!GetTempDir(&tmpdir))
@@ -934,8 +934,6 @@ bool GetShmemTempDir(bool executable, FilePath* path) {
     *path = FilePath("/dev/shm");
     return true;
   }
-#else
-  (void)executable;  // Avoid unused warning when !defined(OS_LINUX).
 #endif
   return GetTempDir(path);
 }