Switch to standard integer types in chrome/browser/, part 1 of 4.

chrome/browser/android/history_report/usage_reports_buffer_backend.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 "chrome/browser/android/history_report/usage_reports_buffer_backend.h"
 
 #include <inttypes.h>
 
 #include "base/files/file_util.h"
 #include "base/logging.h"
@@ skipping 40 matching lines @@
     CHECK(db);
     db_.reset(db);
     return true;
   }
   LOG(WARNING) << "Unable to open " << path << ": "
                << status.ToString();
   return false;
 }
 
 void UsageReportsBufferBackend::AddVisit(const std::string& id,
-    int64 timestamp_ms,
-    bool typed_visit) {
+                                         int64_t timestamp_ms,
+                                         bool typed_visit) {
   if (!db_.get()) {
     LOG(WARNING) << "AddVisit db not initilized.";
     return;
   }
   history_report::UsageReport report;
   report.set_id(id);
   report.set_timestamp_ms(timestamp_ms);
   report.set_typed_visit(typed_visit);
   leveldb::WriteOptions writeOptions;
   leveldb::Status status = db_->Put(
@@ skipping 64 matching lines @@
   int num_entries = 0;
   scoped_ptr<leveldb::Iterator> db_it(db_->NewIterator(options));
   for (db_it->SeekToFirst(); db_it->Valid(); db_it->Next()) num_entries++;
   dump.append(base::IntToString(num_entries));
   dump.append("]");
   return dump;
 }
 
 }  // namespace history_report