Add GrContext API to allow updating GrBackendSurfaceMutableState.

This is currently only supported for the Vulkan backend

Bug: skia:10254
Change-Id: I9274799098dc00dec5abcbcec95ce7cc23fec537
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/293844
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt
index 92713b6..169b0d5 100644
--- a/RELEASE_NOTES.txt
+++ b/RELEASE_NOTES.txt
@@ -8,9 +8,13 @@
 ------------
 
   * <insert new release notes here>
-  
+
+  * Add GrContext function to set mutable state on a backend surface. Currently this
+    is only used for setting vulkan VkImage layout and queue family.
+    https://review.skia.org/293844
+
   * SkSurface factores that take GrBackendTexture or GrBackendRenderTarget now always
-    call the release proc (if provided) on failure. SkSurface::replaceBackendTexture 
+    call the release proc (if provided) on failure. SkSurface::replaceBackendTexture
     also calls the release proc on failure.
     https://review.skia.org/293762