Convert //base to use std::unique_ptr

base/debug/stack_trace_posix.cc

Index: base/debug/stack_trace_posix.cc
diff --git a/base/debug/stack_trace_posix.cc b/base/debug/stack_trace_posix.cc
index 0551784ebe4f09c98ac4557da63f833c77537f3c..791b1eff051f08a80b6d5184dc9a4c04ace3e6df 100644
--- a/base/debug/stack_trace_posix.cc
+++ b/base/debug/stack_trace_posix.cc
@@ -17,6 +17,7 @@
 #include <unistd.h>
 
 #include <map>
+#include <memory>
 #include <ostream>
 #include <string>
 #include <vector>
@@ -38,7 +39,6 @@
 #include "base/debug/proc_maps_linux.h"
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/posix/eintr_wrapper.h"
@@ -99,7 +99,7 @@ void DemangleSymbols(std::string* text) {
 
     // Try to demangle the mangled symbol candidate.
     int status = 0;
-    scoped_ptr<char, base::FreeDeleter> demangled_symbol(
+    std::unique_ptr<char, base::FreeDeleter> demangled_symbol(
         abi::__cxa_demangle(mangled_symbol.c_str(), NULL, 0, &status));
     if (status == 0) {  // Demangling is successful.
       // Remove the mangled symbol.
@@ -180,8 +180,8 @@ void ProcessBacktrace(void *const *trace,
   // Below part is async-signal unsafe (uses malloc), so execute it only
   // when we are not executing the signal handler.
   if (in_signal_handler == 0) {
-    scoped_ptr<char*, FreeDeleter>
-        trace_symbols(backtrace_symbols(trace, size));
+    std::unique_ptr<char*, FreeDeleter> trace_symbols(

[Nico, 2016/04/04 17:14:55]

(file doesn't iwyu for freedeleter i think)

[dcheng, 2016/04/04 17:43:38]

Note that this CL isn't attempt to address IWYU globally for everything. I'm
thinking about formulating something to make this situation less insane in the
future, but nothing concrete yet.

For this particular issue, the header is already present, just in the wrong
section. I've moved it.

+        backtrace_symbols(trace, size));
     if (trace_symbols.get()) {
       for (size_t i = 0; i < size; ++i) {
         std::string trace_symbol = trace_symbols.get()[i];