diff --git a/atom/browser/native_window_mac.mm b/atom/browser/native_window_mac.mm
index 430fe48ee96..e3cf300bbaa 100644
--- a/atom/browser/native_window_mac.mm
+++ b/atom/browser/native_window_mac.mm
@@ -228,7 +228,7 @@ bool ScopedDisableResize::disable_resize_ = false;
 - (void)windowWillEnterFullScreen:(NSNotification*)notification {
   // Hide the native toolbar before entering fullscreen, so there is no visual
   // artifacts.
-  if (base::mac::IsOSYosemiteOrLater() &&
+  if (base::mac::IsOS10_10() &&
       shell_->title_bar_style() == atom::NativeWindowMac::HIDDEN_INSET) {
     NSWindow* window = shell_->GetNativeWindow();
     [window setToolbar:nil];
@@ -243,7 +243,7 @@ bool ScopedDisableResize::disable_resize_ = false;
   // have to set one, because title bar is visible here.
   NSWindow* window = shell_->GetNativeWindow();
   if ((shell_->transparent() || !shell_->has_frame()) &&
-      base::mac::IsOSYosemiteOrLater() &&
+      base::mac::IsOS10_10() &&
       // FIXME(zcbenz): Showing titlebar for hiddenInset window is weird under
       // fullscreen mode.
       shell_->title_bar_style() != atom::NativeWindowMac::HIDDEN_INSET) {
@@ -252,7 +252,7 @@ bool ScopedDisableResize::disable_resize_ = false;
 
   // Restore the native toolbar immediately after entering fullscreen, if we do
   // this before leaving fullscreen, traffic light buttons will be jumping.
-  if (base::mac::IsOSYosemiteOrLater() &&
+  if (base::mac::IsOS10_10() &&
       shell_->title_bar_style() == atom::NativeWindowMac::HIDDEN_INSET) {
     base::scoped_nsobject<NSToolbar> toolbar(
         [[NSToolbar alloc] initWithIdentifier:@"titlebarStylingToolbar"]);
@@ -269,13 +269,13 @@ bool ScopedDisableResize::disable_resize_ = false;
   // Restore the titlebar visibility.
   NSWindow* window = shell_->GetNativeWindow();
   if ((shell_->transparent() || !shell_->has_frame()) &&
-      base::mac::IsOSYosemiteOrLater() &&
+      base::mac::IsOS10_10() &&
       shell_->title_bar_style() != atom::NativeWindowMac::HIDDEN_INSET) {
     [window setTitleVisibility:NSWindowTitleHidden];
   }
 
   // Turn off the style for toolbar.
-  if (base::mac::IsOSYosemiteOrLater() &&
+  if (base::mac::IsOS10_10() &&
       shell_->title_bar_style() == atom::NativeWindowMac::HIDDEN_INSET) {
     shell_->SetStyleMask(false, NSFullSizeContentViewWindowMask);
   }
@@ -712,7 +712,7 @@ NativeWindowMac::NativeWindowMac(
     [window_ setDisableKeyOrMainWindow:YES];
 
   if (transparent() || !has_frame()) {
-    if (base::mac::IsOSYosemiteOrLater()) {
+    if (base::mac::IsOS10_10()) {
       // Don't show title bar.
       [window_ setTitleVisibility:NSWindowTitleHidden];
     }
@@ -725,7 +725,7 @@ NativeWindowMac::NativeWindowMac(
 
   // Hide the title bar.
   if (title_bar_style_ == HIDDEN_INSET) {
-    if (base::mac::IsOSYosemiteOrLater()) {
+    if (base::mac::IsOS10_10()) {
       [window_ setTitlebarAppearsTransparent:YES];
       base::scoped_nsobject<NSToolbar> toolbar(
           [[NSToolbar alloc] initWithIdentifier:@"titlebarStylingToolbar"]);
@@ -1104,7 +1104,7 @@ void NativeWindowMac::Center() {
 void NativeWindowMac::SetTitle(const std::string& title) {
   // For macOS <= 10.9, the setTitleVisibility API is not available, we have
   // to avoid calling setTitle for frameless window.
-  if (!base::mac::IsOSYosemiteOrLater() && (transparent() || !has_frame()))
+  if (!base::mac::IsOS10_10() && (transparent() || !has_frame()))
     return;
 
   [window_ setTitle:base::SysUTF8ToNSString(title)];
@@ -1275,7 +1275,7 @@ void NativeWindowMac::SetAutoHideCursor(bool auto_hide) {
 }
 
 void NativeWindowMac::SetVibrancy(const std::string& type) {
-  if (!base::mac::IsOSYosemiteOrLater()) return;
+  if (!base::mac::IsOS10_10()) return;
 
   NSView* vibrant_view = [window_ vibrantView];
 
@@ -1314,7 +1314,7 @@ void NativeWindowMac::SetVibrancy(const std::string& type) {
     vibrancyType = NSVisualEffectMaterialTitlebar;
   }
 
-  if (base::mac::IsOSElCapitanOrLater()) {
+  if (base::mac::IsOS10_11()) {
     // TODO(kevinsawicki): Use NSVisualEffectMaterial* constants directly once
     // they are available in the minimum SDK version
     if (type == "selection") {
@@ -1419,7 +1419,7 @@ void NativeWindowMac::InstallView() {
   // Make sure the bottom corner is rounded for non-modal windows: http://crbug.com/396264.
   // But do not enable it on OS X 10.9 for transparent window, otherwise a
   // semi-transparent frame would show.
-  if (!(transparent() && base::mac::IsOSMavericks()) && !is_modal())
+  if (!(transparent() && base::mac::IsOS10_9()) && !is_modal())
     [[window_ contentView] setWantsLayer:YES];
 
   NSView* view = inspectable_web_contents()->GetView()->GetNativeView();
@@ -1444,7 +1444,7 @@ void NativeWindowMac::InstallView() {
     [[window_ standardWindowButton:NSWindowFullScreenButton] setHidden:YES];
 
     if (title_bar_style_ != NORMAL) {
-      if (base::mac::IsOSMavericks()) {
+      if (base::mac::IsOS10_9()) {
         ShowWindowButton(NSWindowZoomButton);
         ShowWindowButton(NSWindowMiniaturizeButton);
         ShowWindowButton(NSWindowCloseButton);