Move implementation of QuotaManager.getVolumeInfo to base::SysInfo.

storage/browser/quota/quota_manager.cc

Index: storage/browser/quota/quota_manager.cc
diff --git a/storage/browser/quota/quota_manager.cc b/storage/browser/quota/quota_manager.cc
index ad23d41ec835b534f3dccd2a9d79f377282f810c..6494f3b4066a3503cd44f0402e25266eaaf894bc 100644
--- a/storage/browser/quota/quota_manager.cc
+++ b/storage/browser/quota/quota_manager.cc
@@ -36,18 +36,6 @@
 #include "storage/browser/quota/usage_tracker.h"
 #include "storage/common/quota/quota_types.h"
 
-// Platform specific includes for GetVolumeInfo().
-#if defined(OS_WIN)
-#include <windows.h>
-#elif defined(OS_POSIX)
-#if defined(OS_ANDROID)
-#include <sys/vfs.h>
-#define statvfs statfs  // Android uses a statvfs-like statfs struct and call.
-#else
-#include <sys/statvfs.h>
-#endif
-#endif
-
 #define UMA_HISTOGRAM_MBYTES(name, sample)          \
   UMA_HISTOGRAM_CUSTOM_COUNTS(                      \
       (name), static_cast<int>((sample) / kMBytes), \
@@ -890,7 +878,7 @@ QuotaManager::QuotaManager(
       temporary_quota_initialized_(false),
       temporary_quota_override_(-1),
       special_storage_policy_(special_storage_policy),
-      get_volume_info_fn_(&QuotaManager::GetVolumeInfo),
+      get_volume_info_fn_(&base::SysInfo::GetDiskSpaceInfo),
       storage_monitor_(new StorageMonitor(this)),
       weak_factory_(this) {}
 
@@ -1666,8 +1654,8 @@ void QuotaManager::GetUsageAndQuotaForEviction(
 void QuotaManager::AsyncGetVolumeInfo(
     const VolumeInfoCallback& callback) {
   DCHECK(io_thread_->BelongsToCurrentThread());
-  uint64_t* available_space = new uint64_t(0);
-  uint64_t* total_space = new uint64_t(0);
+  int64_t* available_space = new int64_t(0);
+  int64_t* total_space = new int64_t(0);
   PostTaskAndReplyWithResult(
       db_thread_.get(),
       FROM_HERE,
@@ -1684,7 +1672,7 @@ void QuotaManager::AsyncGetVolumeInfo(
 
 void QuotaManager::DidGetVolumeInfo(
     const VolumeInfoCallback& callback,
-    uint64_t* available_space, uint64_t* total_space, bool success) {
+    int64_t* available_space, int64_t* total_space, bool success) {
   DCHECK(io_thread_->BelongsToCurrentThread());
   callback.Run(success, *available_space, *total_space);
 }
@@ -1845,7 +1833,7 @@ int64_t QuotaManager::CallGetAmountOfFreeDiskSpace(
     LOG(WARNING) << "Create directory failed for path" << profile_path.value();
     return 0;
   }
-  uint64_t available, total;
+  int64_t available, total;
   if (!get_volume_info_fn(profile_path, &available, &total)) {
     return 0;
   }
@@ -1854,28 +1842,4 @@ int64_t QuotaManager::CallGetAmountOfFreeDiskSpace(
   return static_cast<int64_t>(available);
 }
 
-//static
-bool QuotaManager::GetVolumeInfo(const base::FilePath& path,
-                                 uint64_t* available_space,
-                                 uint64_t* total_size) {
-  // Inspired by similar code in the base::SysInfo class.
-  base::ThreadRestrictions::AssertIOAllowed();
-#if defined(OS_WIN)
-  ULARGE_INTEGER available, total, free;
-  if (!GetDiskFreeSpaceExW(path.value().c_str(), &available, &total, &free))
-    return false;
-  *available_space = static_cast<uint64_t>(available.QuadPart);
-  *total_size = static_cast<uint64_t>(total.QuadPart);
-#elif defined(OS_POSIX)
-  struct statvfs stats;
-  if (HANDLE_EINTR(statvfs(path.value().c_str(), &stats)) != 0)
-    return false;
-  *available_space = static_cast<uint64_t>(stats.f_bavail) * stats.f_frsize;
-  *total_size = static_cast<uint64_t>(stats.f_blocks) * stats.f_frsize;
-#else
-#error Not implemented
-#endif
-  return true;
-}
-
 }  // namespace storage