Bug 1850883 - Remove always-true OnHighSierraOrLater() and OnCatalinaOrLater() version checks. r=gfx-reviewers,lsalzman

And stop including nsCocoaFeatures.h where it's no longer needed.

Firefox versions >= 116 only support macOS >= 10.15. High Sierra is macOS 10.13. Catalina is macOS 10.15.

Differential Revision: https://phabricator.services.mozilla.com/D187645

dom/canvas/WebGLContextGL.cpp

@@ -39,11 +39,6 @@
 #include "WebGLValidateStrings.h"
 #include <algorithm>
 
-// needed to check if current OS is lower than 10.7
-#if defined(MOZ_WIDGET_COCOA)
-#  include "nsCocoaFeatures.h"
-#endif
-
 #include "mozilla/DebugOnly.h"
 #include "mozilla/dom/BindingUtils.h"
 #include "mozilla/dom/ImageData.h"

dom/canvas/WebGLContextTextures.cpp

@@ -35,11 +35,6 @@
 #include "WebGLValidateStrings.h"
 #include <algorithm>
 
-// needed to check if current OS is lower than 10.7
-#if defined(MOZ_WIDGET_COCOA)
-#  include "nsCocoaFeatures.h"
-#endif
-
 #include "mozilla/DebugOnly.h"
 #include "mozilla/dom/BindingUtils.h"
 #include "mozilla/dom/ImageData.h"

gfx/2d/NativeFontResourceMac.cpp

@@ -18,7 +18,6 @@
 #endif
 
 #include "nsIMemoryReporter.h"
-#include "nsCocoaFeatures.h"
 
 namespace mozilla {
 namespace gfx {

gfx/thebes/gfxPlatform.cpp

@@ -83,7 +83,6 @@
 #elif defined(XP_MACOSX)
 #  include "gfxPlatformMac.h"
 #  include "gfxQuartzSurface.h"
-#  include "nsCocoaFeatures.h"
 #elif defined(MOZ_WIDGET_GTK)
 #  include "gfxPlatformGtk.h"
 #elif defined(ANDROID)

gfx/thebes/gfxPlatformMac.cpp

@@ -968,10 +968,11 @@ bool gfxPlatformMac::SupportsHDR() {
   if (GetScreenDepth() <= 24) {
     return false;
   }
+
   // Screen is capable. Is the OS capable?
 #ifdef EARLY_BETA_OR_EARLIER
   // More-or-less supported in Catalina.
-  return nsCocoaFeatures::OnCatalinaOrLater();
+  return true;
 #else
   // Definitely supported in Big Sur.
   return nsCocoaFeatures::OnBigSurOrLater();
@@ -1014,13 +1015,7 @@ nsTArray<uint8_t> gfxPlatformMac::GetPlatformCMSOutputProfileData() {
   return result;
 }
 
-bool gfxPlatformMac::CheckVariationFontSupport() {
-  // We don't allow variation fonts to be enabled before 10.13,
-  // as although the Core Text APIs existed, they are known to be
-  // fairly buggy.
-  // (Note that Safari also requires 10.13 for variation-font support.)
-  return nsCocoaFeatures::OnHighSierraOrLater();
-}
+bool gfxPlatformMac::CheckVariationFontSupport() { return true; }
 
 void gfxPlatformMac::InitPlatformGPUProcessPrefs() {
   FeatureState& gpuProc = gfxConfig::GetFeature(Feature::GPU_PROCESS);