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

chrome/browser/android/history_report/usage_reports_buffer_service.cc

Index: chrome/browser/android/history_report/usage_reports_buffer_service.cc
diff --git a/chrome/browser/android/history_report/usage_reports_buffer_service.cc b/chrome/browser/android/history_report/usage_reports_buffer_service.cc
index 620e2626ef0e7cacedc15b828987395f76926a7f..4d8680da05faa9436e35cd329ba0ab89c4e037a5 100644
--- a/chrome/browser/android/history_report/usage_reports_buffer_service.cc
+++ b/chrome/browser/android/history_report/usage_reports_buffer_service.cc
@@ -20,7 +20,7 @@ void DoInit(history_report::UsageReportsBufferBackend* backend) {
 
 void DoAddVisit(history_report::UsageReportsBufferBackend* backend,
                 const std::string id,
-                int64 timestamp_ms,
+                int64_t timestamp_ms,
                 bool typed_visit) {
   backend->AddVisit(id, timestamp_ms, typed_visit);
 }
@@ -34,9 +34,9 @@ void DoRemove(history_report::UsageReportsBufferBackend* backend,
 
 void DoGetUsageReportsBatch(
     history_report::UsageReportsBufferBackend* backend,
-    int32 batch_size,
+    int32_t batch_size,
     base::WaitableEvent* finished,
-    scoped_ptr<std::vector<history_report::UsageReport> >* result) {
+    scoped_ptr<std::vector<history_report::UsageReport>>* result) {
   *result = backend->GetUsageReportsBatch(batch_size).Pass();
   finished->Signal();
 }
@@ -79,8 +79,8 @@ void UsageReportsBufferService::Init() {
 }
 
 void UsageReportsBufferService::AddVisit(const std::string& id,
-    int64 timestamp_ms,
-    bool typed_visit) {
+                                         int64_t timestamp_ms,
+                                         bool typed_visit) {
   base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
   pool->PostSequencedWorkerTaskWithShutdownBehavior(
       worker_pool_token_,
@@ -93,8 +93,8 @@ void UsageReportsBufferService::AddVisit(const std::string& id,
       base::SequencedWorkerPool::BLOCK_SHUTDOWN);
 }
 
-scoped_ptr<std::vector<UsageReport> >
-UsageReportsBufferService::GetUsageReportsBatch(int32 batch_size) {
+scoped_ptr<std::vector<UsageReport>>
+UsageReportsBufferService::GetUsageReportsBatch(int32_t batch_size) {
   scoped_ptr<std::vector<UsageReport> > result;
   base::WaitableEvent finished(false, false);
   base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();