diff --git a/brightray/browser/browser_main_parts.cc b/brightray/browser/browser_main_parts.cc
index 6fc464fe7f24..b0a7e72b5f24 100644
--- a/brightray/browser/browser_main_parts.cc
+++ b/brightray/browser/browser_main_parts.cc
@@ -137,10 +137,6 @@ BrowserMainParts::~BrowserMainParts() {
 }
 
 void BrowserMainParts::PreEarlyInitialization() {
-#if defined(OS_MACOSX)
-  IncreaseFileDescriptorLimit();
-#endif
-
 #if defined(USE_X11)
   views::LinuxUI::SetInstance(BuildGtk2UI());
   OverrideLinuxAppDataPath();
diff --git a/brightray/browser/browser_main_parts.h b/brightray/browser/browser_main_parts.h
index da35d78c2292..5b50516f7cc2 100644
--- a/brightray/browser/browser_main_parts.h
+++ b/brightray/browser/browser_main_parts.h
@@ -49,7 +49,6 @@ class BrowserMainParts : public content::BrowserMainParts {
 
  private:
 #if defined(OS_MACOSX)
-  void IncreaseFileDescriptorLimit();
   void InitializeMainNib();
 #endif
 
diff --git a/brightray/browser/browser_main_parts_mac.mm b/brightray/browser/browser_main_parts_mac.mm
index a795e80a69d4..19d0262a101f 100644
--- a/brightray/browser/browser_main_parts_mac.mm
+++ b/brightray/browser/browser_main_parts_mac.mm
@@ -6,35 +6,6 @@
 
 namespace brightray {
 
-namespace {
-
-// Sets the file descriptor soft limit to |max_descriptors| or the OS hard limit, whichever is
-// lower.
-void SetFileDescriptorLimit(rlim_t max_descriptors) {
-  rlimit limits;
-  if (getrlimit(RLIMIT_NOFILE, &limits) != 0) {
-    PLOG(INFO) << "Failed to get file descriptor limit";
-    return;
-  }
-
-  auto new_limit = max_descriptors;
-  if (limits.rlim_max > 0)
-    new_limit = std::min(new_limit, limits.rlim_max);
-  limits.rlim_cur = new_limit;
-  if (setrlimit(RLIMIT_NOFILE, &limits) != 0)
-    PLOG(INFO) << "Failed to set file descriptor limit";
-}
-
-}  // namespace
-
-void BrowserMainParts::IncreaseFileDescriptorLimit() {
-  // We use quite a few file descriptors for our IPC, and the default limit on the Mac is low (256),
-  // so bump it up.
-  // See http://src.chromium.org/viewvc/chrome/trunk/src/chrome/browser/chrome_browser_main_posix.cc?revision=244734#l295
-  // and https://codereview.chromium.org/125151
-  SetFileDescriptorLimit(1024);
-}
-
 // Replicates NSApplicationMain, but doesn't start a run loop.
 void BrowserMainParts::InitializeMainNib() {
   auto infoDictionary = base::mac::OuterBundle().infoDictionary;