Fix unused functions warnings on Linux.

Source/wtf/testing/WTFTestHelpers.h

Index: Source/wtf/testing/WTFTestHelpers.h
diff --git a/Source/wtf/testing/WTFTestHelpers.h b/Source/wtf/testing/WTFTestHelpers.h
index 940b4e6b82d4f359051324ccff77d13f6dfe4f52..b09665aa785ace5c1caa4337c7c0ace55931984a 100644
--- a/Source/wtf/testing/WTFTestHelpers.h
+++ b/Source/wtf/testing/WTFTestHelpers.h
@@ -39,7 +39,7 @@
 namespace WTF {
 
 // Output stream operator so gTest's macros work with WebCore strings.
-static std::ostream& operator<<(std::ostream& out, const String& str)
+inline std::ostream& operator<<(std::ostream& out, const String& str)

[Nico, 2013/10/29 23:07:44]

Why do you need this? This header defines a single function, so files including
this header can just stop doing so if they don't use this function.

[lgombos, 2013/10/30 03:37:56]

Fixed.

 {
     return str.isEmpty() ? out : out << str.utf8().data();
 }