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

base/gfx/rect.h

Index: base/gfx/rect.h
diff --git a/base/gfx/rect.h b/base/gfx/rect.h
index 54e864defec79b89b699bc87c1141de89d9b12e6..a1759f5a31fd41bb350815d23c9eac84d1b6176b 100755
--- a/base/gfx/rect.h
+++ b/base/gfx/rect.h
@@ -12,8 +12,10 @@
 #ifndef BASE_GFX_RECT_H__
 #define BASE_GFX_RECT_H__
 
-#include "base/gfx/size.h"
+#include <iostream>
+
 #include "base/gfx/point.h"
+#include "base/gfx/size.h"
 
 #if defined(OS_WIN)
 typedef struct tagRECT RECT;
@@ -155,13 +157,9 @@ class Rect {
 
 }  // namespace gfx
 
-#ifdef UNIT_TEST
-
 inline std::ostream& operator<<(std::ostream& out, const gfx::Rect& r) {
   return out << r.origin() << " " << r.size();
 }
 
-#endif  // #ifdef UNIT_TEST
-
 #endif  // BASE_GFX_RECT_H__