Move RemoveChars, ReplaceChars, TrimString, and TruncateUTF8ToByteSize to base namespace.

chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc

Index: chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc
diff --git a/chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc b/chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc
index 09bf2b03f6dcce398a1ee01da1dc0e6f17facd74..1119a17e99a3522862f23268f83463e6e6392f16 100644
--- a/chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc
+++ b/chrome/browser/media_galleries/win/mtp_device_delegate_impl_win.cc
@@ -44,7 +44,7 @@ bool GetStorageInfoOnUIThread(const string16& storage_path,
   DCHECK(pnp_device_id);
   DCHECK(storage_object_id);
   string16 storage_device_id;
-  RemoveChars(storage_path, L"\\\\", &storage_device_id);
+  base::RemoveChars(storage_path, L"\\\\", &storage_device_id);
   DCHECK(!storage_device_id.empty());
   // TODO(gbillock): Take the StorageMonitor as an argument.
   StorageMonitor* monitor = StorageMonitor::GetInstance();