Fix auto raw pointer deduction on linux

components/tracing/test/proto_zero_generation_unittest.cc

 // Copyright 2016 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 <limits>
 #include <memory>
 #include <vector>
 
 #include "components/tracing/core/proto_zero_message_handle.h"
 #include "components/tracing/test/example_proto/library.pbzero.h"
@@ skipping 49 matching lines @@
     return buffer_->GetBytes(start, length, buffer);
   }
 
  private:
   std::unique_ptr<FakeScatteredBuffer> buffer_;
   std::unique_ptr<ScatteredStreamWriter> stream_writer_;
   std::vector<std::unique_ptr<ProtoZeroMessage>> root_messages_;
 };
 
 TEST_F(ProtoZeroConformanceTest, SimpleFieldsNoNesting) {
-  auto msg = CreateMessage<pbtest::EveryField>();
+  auto* msg = CreateMessage<pbtest::EveryField>();
 
   msg->set_field_int32(-1);
   msg->set_field_int64(-333123456789ll);
   msg->set_field_uint32(600);
   msg->set_field_uint64(333123456789ll);
   msg->set_field_sint32(-5);
   msg->set_field_sint64(-9000);
   msg->set_field_fixed32(12345);
   msg->set_field_fixed64(444123450000ll);
   msg->set_field_sfixed32(-69999);
@@ skipping 38 matching lines @@
   EXPECT_EQ("FizzBuzz", gold_msg.field_string());
   EXPECT_EQ(std::string("\x11\x00\xBE\xEF", 4), gold_msg.field_bytes());
   EXPECT_EQ(4, gold_msg.repeated_int32_size());
   EXPECT_EQ(1, gold_msg.repeated_int32(0));
   EXPECT_EQ(-1, gold_msg.repeated_int32(1));
   EXPECT_EQ(100, gold_msg.repeated_int32(2));
   EXPECT_EQ(2000000, gold_msg.repeated_int32(3));
 }
 
 TEST_F(ProtoZeroConformanceTest, NestedMessages) {
-  auto msg_a = CreateMessage<pbtest::NestedA>();
+  auto* msg_a = CreateMessage<pbtest::NestedA>();
 
   pbtest::NestedA::NestedB* msg_b = msg_a->add_repeated_a();
   pbtest::NestedA::NestedB::NestedC* msg_c = msg_b->set_value_b();
   msg_c->set_value_c(321);
   msg_b = msg_a->add_repeated_a();
   msg_c = msg_a->set_super_nested();
   msg_c->set_value_c(1000);
   msg_a->Finalize();
 
   size_t msg_size = GetNumSerializedBytes();
@@ skipping 35 matching lines @@
   EXPECT_EQ(ProtoFieldDescriptor::Type::TYPE_INT32, reflection->type());
   EXPECT_EQ(1u, reflection->number());
   EXPECT_FALSE(reflection->is_repeated());
   EXPECT_TRUE(reflection->is_valid());
 
   EXPECT_FALSE(pbtest::TransgalacticParcel::GetFieldDescriptor(42)->is_valid());
 }
 
 }  // namespace proto
 }  // namespace tracing