Expose the iostream (logging) interfaces of some gfx:: classes.

base/gfx/size.h

Index: base/gfx/size.h
diff --git a/base/gfx/size.h b/base/gfx/size.h
index 175a206d0a7bc7f1c4241c0ee25cf238faa01eb3..e4666d6bb482786b0134689a0ded0df263d38d19 100644
--- a/base/gfx/size.h
+++ b/base/gfx/size.h
@@ -7,9 +7,7 @@
 
 #include "build/build_config.h"
 
-#ifdef UNIT_TEST
 #include <iostream>
-#endif
 
 #if defined(OS_WIN)
 typedef struct tagSIZE SIZE;
@@ -70,13 +68,9 @@ class Size {
 
 }  // namespace gfx
 
-#ifdef UNIT_TEST
-
 inline std::ostream& operator<<(std::ostream& out, const gfx::Size& s) {
   return out << s.width() << "x" << s.height();
 }
 
-#endif  // #ifdef UNIT_TEST
-
 #endif // BASE_GFX_SIZE_H__