Revert "Fix compiler warnings in libchrome"

This reverts commit b636ff6a8ac3b54b3067289f01848252ab71eceb.

This broke trunk with messages like:

In file included from external/libchrome/base/time/time_posix.cc:29:0:
external/libchrome/base/lazy_instance.h:51:36: error: missing initializer for member 'base::LazyInstance<base::Lock, base::internal::LeakyLazyInstanceTraits<base::Lock> >::private_instance_' [-Werror=missing-field-initializers]
 #define LAZY_INSTANCE_INITIALIZER {}
                                    ^
external/libchrome/base/time/time_posix.cc:39:38: note: in expansion of macro 'LAZY_INSTANCE_INITIALIZER'
     g_sys_time_to_time_struct_lock = LAZY_INSTANCE_INITIALIZER;
                                      ^
external/libchrome/base/lazy_instance.h:51:36: error: missing initializer for member 'base::LazyInstance<base::Lock, base::internal::LeakyLazyInstanceTraits<base::Lock> >::private_buf_' [-Werror=missing-field-initializers]
 #define LAZY_INSTANCE_INITIALIZER {}
                                    ^
external/libchrome/base/time/time_posix.cc:39:38: note: in expansion of macro 'LAZY_INSTANCE_INITIALIZER'
     g_sys_time_to_time_struct_lock = LAZY_INSTANCE_INITIALIZER;
                                      ^
cc1plus: all warnings being treated as errors

Change-Id: I0c0308e716bd1ed7914e2a032e439a9261d38e56

2 files changed, 3 insertions, 3 deletions

diff --git a/base/files/file_path.cc b/base/files/file_path.cc
index b04a01df26..de8927ac5b 100644
--- a/base/files/file_path.cc
+++ b/base/files/file_path.cc
@@ -45,7 +45,7 @@ const FilePath::CharType kStringTerminator = FILE_PATH_LITERAL('\0');
 // otherwise returns npos.  This can only be true on Windows, when a pathname
 // begins with a letter followed by a colon.  On other platforms, this always
 // returns npos.
-StringType::size_type FindDriveLetter(const StringType& /* path */) {
+StringType::size_type FindDriveLetter(const StringType& path) {
 #if defined(FILE_PATH_USES_DRIVE_LETTERS)
   // This is dependent on an ASCII-based character set, but that's a
   // reasonable assumption.  iswalpha can be too inclusive here.
@@ -1297,7 +1297,7 @@ FilePath FilePath::NormalizePathSeparators() const {
   return NormalizePathSeparatorsTo(kSeparators[0]);
 }
 
-FilePath FilePath::NormalizePathSeparatorsTo(CharType /* separator */) const {
+FilePath FilePath::NormalizePathSeparatorsTo(CharType separator) const {
 #if defined(FILE_PATH_USES_WIN_SEPARATORS)
   DCHECK_NE(kSeparators + kSeparatorsLength,
             std::find(kSeparators, kSeparators + kSeparatorsLength, separator));
diff --git a/base/files/file_util_posix.cc b/base/files/file_util_posix.cc
index 62ca6a56e3..af0cde4af9 100644
--- a/base/files/file_util_posix.cc
+++ b/base/files/file_util_posix.cc
@@ -559,7 +559,7 @@ 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))