Skip validation during command recording when skip_validation is on

This patch factors resource usage tracking so it is separate from
command validation, allowing the bulk of command validation to be
completely skipped.

In DrawCallPerfRun/Vulkan_DynamicPipeline_DynamicBindGroup, disabling
validation cuts roughly 74 nanoseconds (20%) of CPU time, per draw.

In DrawCallPerfRun/Vulkan_DynamicBindGroup, disabling validation
cuts roughly 35 nanoseconds (17%) of CPU time, per draw.

In DrawCallPerfRun/Vulkan_MultipleBindGroups, disabling validation
cuts roughly 45 nanoseconds (14%) of CPU time, per draw.

Bug: dawn:271
Change-Id: I517b85840ba18c6a554b83f34a1d0aef1a8c56a6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13520
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

src/dawn_native/ComputePassEncoder.cpp

@@ -48,7 +48,7 @@ namespace dawn_native {
 
                 return {};
             })) {
-            mEncodingContext->ExitPass(this);
+            mEncodingContext->ExitPass(this, mUsageTracker.AcquireResourceUsage());
         }
     }
 
@@ -77,6 +77,8 @@ namespace dawn_native {
             dispatch->indirectBuffer = indirectBuffer;
             dispatch->indirectOffset = indirectOffset;
 
+            mUsageTracker.BufferUsedAs(indirectBuffer, wgpu::BufferUsage::Indirect);
+
             return {};
         });
     }