base: Change auto to not deduce raw pointers.

base/trace_event/heap_profiler_allocation_context_tracker.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/trace_event/heap_profiler_allocation_context_tracker.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/atomicops.h"
@@ skipping 150 matching lines @@
   if (ignore_scope_depth_) {
     ctx.backtrace.frames[0] = StackFrame::FromTraceEventName(kTracingOverhead);
     ctx.type_name = kTracingOverhead;
     ctx.backtrace.frame_count = 1;
     return ctx;
   }
 
   CaptureMode mode = static_cast<CaptureMode>(
       subtle::NoBarrier_Load(&capture_mode_));
 
-  auto backtrace = std::begin(ctx.backtrace.frames);
-  auto backtrace_end = std::end(ctx.backtrace.frames);
+  auto* backtrace = std::begin(ctx.backtrace.frames);
+  auto* backtrace_end = std::end(ctx.backtrace.frames);
 
   if (!thread_name_) {
     // Ignore the string allocation made by GetAndLeakThreadName to avoid
     // reentrancy.
     ignore_scope_depth_++;
     thread_name_ = GetAndLeakThreadName();
     ANNOTATE_LEAKING_OBJECT_PTR(thread_name_);
     DCHECK(thread_name_);
     ignore_scope_depth_--;
   }
@@ skipping 54 matching lines @@
 
   // TODO(ssid): Fix crbug.com/594803 to add file name as 3rd dimension
   // (component name) in the heap profiler and not piggy back on the type name.
   ctx.type_name = task_contexts_.empty() ? nullptr : task_contexts_.back();
 
   return ctx;
 }
 
 }  // namespace trace_event
 }  // namespace base