Update to Chromium version 86.0.4240.0 (#800218)

- CefURLRequest::Create is no longer supported in the renderer process
  (see https://crbug.com/891872). Use CefFrame::CreateURLRequest instead.
- Mac platform definitions have been changed from `MACOSX` to `MAC`
  (see https://crbug.com/1105907) and related CMake macro names have
  been updated. The old `OS_MACOSX` define is still set in code and CMake
  for backwards compatibility.
- Linux ARM build is currently broken (see https://crbug.com/1123214).

patch/patches/ui_gl_utils_1123950.patch

@@ -0,0 +1,13 @@
+diff --git ui/gl/gl_utils.cc ui/gl/gl_utils.cc
+index 2f0832c0ae75..f8a494b05e42 100644
+--- ui/gl/gl_utils.cc
++++ ui/gl/gl_utils.cc
+@@ -130,7 +130,7 @@ bool ShouldForceDirectCompositionRootSurfaceFullDamage() {
+     if ((brga_flags & kSupportBits) == 0)
+       return false;
+     return true;
+-  };
++  }();
+   return should_force;
+ }
+ #endif  // OS_WIN