Remove WTFReportAssertionFailure and WTFReportBacktrace.

base/debug/stack_trace.cc

Index: base/debug/stack_trace.cc
diff --git a/base/debug/stack_trace.cc b/base/debug/stack_trace.cc
index fb2f6b508f2e0e582299e4321c9b5ef117cd8e53..94ff7d0755ab50a650ebcee9dfbe05ab287972b2 100644
--- a/base/debug/stack_trace.cc
+++ b/base/debug/stack_trace.cc
@@ -192,6 +192,8 @@ void* LinkStackFrames(void* fpp, void* parent_fp) {
 
 }  // namespace
 
+StackTrace::StackTrace() : StackTrace(arraysize(trace_)) {}
+
 StackTrace::StackTrace(const void* const* trace, size_t count) {
   count = std::min(count, arraysize(trace_));
   if (count)
@@ -199,9 +201,6 @@ StackTrace::StackTrace(const void* const* trace, size_t count) {
   count_ = count;
 }
 
-StackTrace::~StackTrace() {
-}
-
 const void *const *StackTrace::Addresses(size_t* count) const {
   *count = count_;
   if (count_)