Added workaround for mozbz#1464823 which makes GL layer compositor usable on Wayland.

firefox.spec

@@ -102,7 +102,7 @@
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        60.0.1
-Release:        4%{?pre_tag}%{?dist}
+Release:        5%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://hg.mozilla.org/releases/mozilla-release/archive/firefox-%{version}%{?pre_version}.source.tar.xz
@@ -180,6 +180,7 @@ Patch561:        rb244012.patch
 Patch562:        rb246410.patch
 Patch563:        rb245262.patch
 Patch564:        mozilla-1464808.patch
+Patch565:        mozilla-1464823.patch
 
 # Debian patches
 Patch500:        mozilla-440908.patch
@@ -376,6 +377,7 @@ This package contains results of tests executed during build.
 %patch562 -p1 -b .rb246410
 %patch563 -p1 -b .rb245262
 %patch564 -p1 -b .mozilla-1464808
+%patch565 -p1 -b .mozilla-1464823
 %endif
 
 %{__rm} -f .mozconfig
@@ -912,6 +914,10 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Wed May 30 2018 Martin Stransky <stransky@redhat.com> - 60.0.1-5
+- Added workaround for mozbz#1464823 which makes GL layer
+  compositor usable on Wayland.
+
 * Tue May 29 2018 Martin Stransky <stransky@redhat.com> - 60.0.1-4
 - Added fix for mozbz#1464808 - Set default D&D action to move
   on Wayland.

mozilla-1464823.patch

@@ -0,0 +1,27 @@
+Bug 1464823 - Don't sync rendering on Mesa as the Mesa Wayland implementation is buggy.
+
+diff --git a/gfx/gl/GLContextProviderEGL.cpp b/gfx/gl/GLContextProviderEGL.cpp
+--- a/gfx/gl/GLContextProviderEGL.cpp
++++ b/gfx/gl/GLContextProviderEGL.cpp
+@@ -273,20 +273,17 @@ GLContextEGLFactory::Create(EGLNativeWin
+     if (!gl) {
+         gfxCriticalNote << "Failed to create EGLContext!";
+         mozilla::gl::DestroySurface(surface);
+         return nullptr;
+     }
+ 
+     gl->MakeCurrent();
+     gl->SetIsDoubleBuffered(doubleBuffered);
+-    if (aWebRender && sEGLLibrary.IsANGLE()) {
+-        MOZ_ASSERT(doubleBuffered);
+-        sEGLLibrary.fSwapInterval(EGL_DISPLAY(), 0);
+-    }
++    sEGLLibrary.fSwapInterval(EGL_DISPLAY(), 0);
+     return gl.forget();
+ }
+ 
+ GLContextEGL::GLContextEGL(CreateContextFlags flags, const SurfaceCaps& caps,
+                            bool isOffscreen, EGLConfig config, EGLSurface surface,
+                            EGLContext context)
+     : GLContext(flags, caps, nullptr, isOffscreen, false)
+     , mConfig(config)