net: Use stl utilities from the base namespace

net/base/filename_util_internal.cc

Index: net/base/filename_util_internal.cc
diff --git a/net/base/filename_util_internal.cc b/net/base/filename_util_internal.cc
index 6eb3f55ed441f9908f48d6c6a9f28347add78f79..fa0a91f620b1a6a97bc27f89a1723b691248d30e 100644
--- a/net/base/filename_util_internal.cc
+++ b/net/base/filename_util_internal.cc
@@ -54,7 +54,7 @@ base::FilePath::StringType GetCorrectedExtensionUnsafe(
   // "foo.jpg" to "foo.jpeg".
   std::vector<base::FilePath::StringType> all_mime_extensions;
   GetExtensionsForMimeType(mime_type, &all_mime_extensions);
-  if (ContainsValue(all_mime_extensions, extension))
+  if (base::ContainsValue(all_mime_extensions, extension))
     return extension;
 
   // Get the "final" extension. In most cases, this is the same as the
@@ -68,7 +68,7 @@ base::FilePath::StringType GetCorrectedExtensionUnsafe(
   // If there's a double extension, and the second extension is in the
   // list of valid extensions for the given type, keep the double extension.
   // This avoids renaming things like "foo.tar.gz" to "foo.gz".
-  if (ContainsValue(all_mime_extensions, final_extension))
+  if (base::ContainsValue(all_mime_extensions, final_extension))
     return extension;
   return preferred_mime_extension;
 }