Update from chromium a8e7c94b1b79a0948d05a1fcfff53391d22ce37a

base/win/pe_image.h

Index: base/win/pe_image.h
diff --git a/base/win/pe_image.h b/base/win/pe_image.h
index 878ef528c9a8426c27dbc39b2c58735855a702de..d93e99dc14393b1f782d3752c3bbeba2accbef71 100644
--- a/base/win/pe_image.h
+++ b/base/win/pe_image.h
@@ -23,7 +23,7 @@ namespace base {
 namespace win {
 
 // This class is a wrapper for the Portable Executable File Format (PE).
-// It's main purpose is to provide an easy way to work with imports and exports
+// Its main purpose is to provide an easy way to work with imports and exports
 // from a file, mapped in memory as image.
 class PEImage {
  public:
@@ -84,6 +84,8 @@ class PEImage {
     module_ = reinterpret_cast<HMODULE>(const_cast<void*>(module));
   }
 
+  virtual ~PEImage() {}
+
   // Gets the HMODULE for this object.
   HMODULE module() const;