s/OutputAttachment/RenderAttachment/g

But also keep OutputAttachment so it can be gradually changed in all
dependants.

See https://github.com/gpuweb/gpuweb/pull/1168 and
https://github.com/gpuweb/gpuweb/pull/1168

Bug: dawn:22
Change-Id: I6a1ec1de6c22ca4deac88b7fffde4b98d9d54a84
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/31040
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/tests/end2end/SwapChainTests.cpp b/src/tests/end2end/SwapChainTests.cpp
index 2a4cd93..383a477 100644
--- a/src/tests/end2end/SwapChainTests.cpp
+++ b/src/tests/end2end/SwapChainTests.cpp
@@ -53,7 +53,7 @@
 
         baseDescriptor.width = width;
         baseDescriptor.height = height;
-        baseDescriptor.usage = wgpu::TextureUsage::OutputAttachment;
+        baseDescriptor.usage = wgpu::TextureUsage::RenderAttachment;
         baseDescriptor.format = wgpu::TextureFormat::BGRA8Unorm;
         baseDescriptor.presentMode = wgpu::PresentMode::Mailbox;
     }