Merge from Chromium at DEPS revision r198571

This commit was generated by merge_to_master.py.

Change-Id: I951118a03836157090561764dd2627f0add8118f
diff --git a/base/vlog.h b/base/vlog.h
index 987730f..4ef173e 100644
--- a/base/vlog.h
+++ b/base/vlog.h
@@ -11,7 +11,7 @@
 
 #include "base/base_export.h"
 #include "base/basictypes.h"
-#include "base/string_piece.h"
+#include "base/strings/string_piece.h"
 
 namespace logging {