base: Change auto to not deduce raw pointers.

base/trace_event/heap_profiler_allocation_context_tracker_unittest.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 <stddef.h>
 
 #include <iterator>
 
 #include "base/memory/ref_counted.h"
 #include "base/pending_task.h"
@@ skipping 16 matching lines @@
 const char kGingerbread[] = "Gingerbread";
 
 // Asserts that the fixed-size array |expected_backtrace| matches the backtrace
 // in |AllocationContextTracker::GetContextSnapshot|.
 template <size_t N>
 void AssertBacktraceEquals(const StackFrame(&expected_backtrace)[N]) {
   AllocationContext ctx =
       AllocationContextTracker::GetInstanceForCurrentThread()
           ->GetContextSnapshot();
 
-  auto actual = std::begin(ctx.backtrace.frames);
-  auto actual_bottom = actual + ctx.backtrace.frame_count;
+  auto* actual = std::begin(ctx.backtrace.frames);
+  auto* actual_bottom = actual + ctx.backtrace.frame_count;
   auto expected = std::begin(expected_backtrace);
   auto expected_bottom = std::end(expected_backtrace);
 
   // Note that this requires the pointers to be equal, this is not doing a deep
   // string comparison.
   for (; actual != actual_bottom && expected != expected_bottom;
        actual++, expected++)
     ASSERT_EQ(*expected, *actual);
 
   // Ensure that the height of the stacks is the same.
@@ skipping 227 matching lines @@
       AllocationContextTracker::GetInstanceForCurrentThread()
           ->GetContextSnapshot();
   const StringPiece kTracingOverhead("tracing_overhead");
   ASSERT_EQ(kTracingOverhead,
             static_cast<const char*>(ctx.backtrace.frames[0].value));
   ASSERT_EQ(1u, ctx.backtrace.frame_count);
 }
 
 }  // namespace trace_event
 }  // namespace base