Revert "Initiate MSAA resolves during DAG generation"

This reverts commit 804f6a0fe7f3c7df5ac69891841ee9cdf6d1121a.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Initiate MSAA resolves during DAG generation
> 
> Adds an "fIsMSAADirty" flag to GrRenderTargetProxy and switches to
> resolving MSAA in GrTextureResolveRenderTask. This completes our push
> to resolve textures outside of render passes.
> 
> For the time being, we only store a dirty flag on the proxy and still
> rely on the GrRenderTarget itself to track the actual dirty rect. This
> will be followed by a CL that moves the dirty rect out of
> GrRenderTarget and into the proxy.
> 
> Bug: skia:
> Change-Id: I21219a58028bdb4590940210e565133093cd34b3
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235672
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com,csmartdalton@google.com

Change-Id: Ife557caa840edfb64cbcafc272dc3012cfb43702
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/237242
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
diff --git a/src/gpu/GrRenderTask.cpp b/src/gpu/GrRenderTask.cpp
index 181a8dd..639f4cf 100644
--- a/src/gpu/GrRenderTask.cpp
+++ b/src/gpu/GrRenderTask.cpp
@@ -51,10 +51,6 @@
     }
 
     if (ExpectedOutcome::kTargetDirty == this->onMakeClosed(caps)) {
-        GrRenderTargetProxy* renderTargetProxy = fTarget->asRenderTargetProxy();
-        if (renderTargetProxy && renderTargetProxy->requiresManualMSAAResolve()) {
-            renderTargetProxy->markMSAADirty();
-        }
         GrTextureProxy* textureProxy = fTarget->asTextureProxy();
         if (textureProxy && GrMipMapped::kYes == textureProxy->mipMapped()) {
             textureProxy->markMipMapsDirty();
@@ -97,11 +93,8 @@
     GrRenderTask* dependedOnTask = dependedOn->getLastRenderTask();
 
     if (dependedOnTask == this) {
-        // self-read - presumably for dst reads. We don't need to do anything in this case. The
-        // XferProcessor will detect what is happening and insert a texture barrier.
+        // self-read - presumably for dst reads. We can't make it closed in the self-read case.
         SkASSERT(GrMipMapped::kNo == mipMapped);
-        // We should never attempt a self-read on a surface that has a separate MSAA renderbuffer.
-        SkASSERT(!dependedOn->requiresManualMSAAResolve());
         SkASSERT(!dependedOn->asTextureProxy() ||
                  !dependedOn->asTextureProxy()->texPriv().isDeferred());
         return;
@@ -114,16 +107,6 @@
         dependedOnTask->makeClosed(caps);
     }
 
-    auto textureResolveFlags = GrTextureResolveFlags::kNone;
-
-    if (dependedOn->requiresManualMSAAResolve()) {
-        auto* renderTargetProxy = dependedOn->asRenderTargetProxy();
-        SkASSERT(renderTargetProxy);
-        if (renderTargetProxy->isMSAADirty()) {
-            textureResolveFlags |= GrTextureResolveFlags::kMSAA;
-        }
-    }
-
     GrTextureProxy* textureProxy = dependedOn->asTextureProxy();
     if (GrMipMapped::kYes == mipMapped) {
         SkASSERT(textureProxy);
@@ -131,16 +114,14 @@
             // There are some cases where we might be given a non-mipmapped texture with a mipmap
             // filter. See skbug.com/7094.
             mipMapped = GrMipMapped::kNo;
-        } else if (textureProxy->mipMapsAreDirty()) {
-            textureResolveFlags |= GrTextureResolveFlags::kMipMaps;
         }
     }
 
-    // Does this proxy have msaa to resolve and/or mipmaps to regenerate?
-    if (GrTextureResolveFlags::kNone != textureResolveFlags) {
+    // Does this proxy have mipmaps that need to be regenerated?
+    if (GrMipMapped::kYes == mipMapped && textureProxy->mipMapsAreDirty()) {
         // Create a renderTask that resolves the texture's mipmap data.
         GrRenderTask* textureResolveTask = textureResolveManager.newTextureResolveRenderTask(
-                sk_ref_sp(textureProxy), textureResolveFlags, caps);
+                sk_ref_sp(textureProxy), GrTextureResolveFlags::kMipMaps, caps);
 
         // The GrTextureResolveRenderTask factory should have called addDependency (in this
         // instance, recursively) on the textureProxy.