Move files in wtf/ to platform/wtf/ (Part 4).

third_party/WebKit/Source/wtf/Assertions.cpp

Index: third_party/WebKit/Source/wtf/Assertions.cpp
diff --git a/third_party/WebKit/Source/wtf/Assertions.cpp b/third_party/WebKit/Source/wtf/Assertions.cpp
index b319881e0f36f170b6a96fb18a303661b516cd2f..26ba3221f843973b7bf8c56d0db0e8d510323975 100644
--- a/third_party/WebKit/Source/wtf/Assertions.cpp
+++ b/third_party/WebKit/Source/wtf/Assertions.cpp
@@ -187,6 +187,10 @@ ScopedLogger::~ScopedLogger() {
   }
 }
 
+void ScopedLogger::setPrintFuncForTests(PrintFunctionPtr ptr) {
+  m_printFunc = ptr;
+};
+
 void ScopedLogger::init(const char* format, va_list args) {
   current() = this;
   if (m_parent)