Roll ANGLE from 6c1bab070220 to 6a09e41ce6ea (1 revision) (flutter/engine#44300)

6c1bab0702..6a09e41ce6

2023-08-02 avi@chromium.org Remove "enable_arc2" from ANGLE

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-flutter-engine
Please CC flutter-engine@google.com,jacksongardner@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in ANGLE: http://anglebug.com/new
To file a bug in Flutter Engine: https://github.com/flutter/flutter/issues/new

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

DEPS

@@ -630,7 +630,7 @@ deps = {
    Var('swiftshader_git') + '/SwiftShader.git' + '@' + '5f9ed9b16931c7155171d31f75004f73f0a3abc8',
 
    'src/third_party/angle':
-   Var('chromium_git') + '/angle/angle.git' + '@' + '6c1bab07022061eadb36a6856371778384467ee8',
+   Var('chromium_git') + '/angle/angle.git' + '@' + '6a09e41ce6ea8c93524faae1a925eb01562f53b1',
 
    'src/third_party/vulkan_memory_allocator':
    Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator' + '@' + '7de5cc00de50e71a3aab22dea52fbb7ff4efceb6',