Explicitly specify whether to emit frame pointers by default.

base/debug/stack_trace_unittest.cc

Index: base/debug/stack_trace_unittest.cc
diff --git a/base/debug/stack_trace_unittest.cc b/base/debug/stack_trace_unittest.cc
index 536edb258075271035b2b7a457111e692be095b0..bdff543e7934c5d5c571d64b6fc926d8eaea3ebb 100644
--- a/base/debug/stack_trace_unittest.cc
+++ b/base/debug/stack_trace_unittest.cc
@@ -8,6 +8,7 @@
 #include <sstream>
 #include <string>
 
+#include "base/debug/debugging_flags.h"
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
 #include "base/process/kill.h"
@@ -254,10 +255,11 @@ TEST_F(StackTraceTest, itoa_r) {
 }
 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID)
 
-#if HAVE_TRACE_STACK_FRAME_POINTERS && !defined(OS_WIN)
 // Windows x64 binaries cannot be built with frame pointer, and MSVC doesn't
 // provide intrinsics to query the frame pointer even for the x86 build, nor
 // does it allow us to take the address of labels, so skip these under Windows.
+#if BUILDFLAG(CAN_UNWIND_WITH_FRAME_POINTERS) && !defined(OS_WIN)
+
 template <size_t Depth>
 void NOINLINE ExpectStackFramePointers(const void** frames,
                                        size_t max_depth) {
@@ -315,7 +317,7 @@ TEST_F(StackTraceTest, MAYBE_StackEnd) {
   EXPECT_NE(0u, GetStackEnd());
 }
 
-#endif  // HAVE_TRACE_STACK_FRAME_POINTERS && !defined(OS_WIN)
+#endif  // BUILDFLAG(CAN_UNWIND_WITH_FRAME_POINTERS) && !defined(OS_WIN)
 
 }  // namespace debug
 }  // namespace base