Revert "Move more Ops to skgpu::v1 namespace"

This reverts commit f3158abda33ad84e3df90cfb75a3ed82abd2fbe2.

Reason for revert: Broke Flutter build

Original change's description:
> Move more Ops to skgpu::v1 namespace
>
> GrClearOp
> GrDashOp
>
> Bug: skia:11837
> Change-Id: Ib65418952e7d4fb1e419e4942223823f22302b34
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/443518
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,michaelludwig@google.com,skcq-be@skia-corp.google.com.iam.gserviceaccount.com

Change-Id: Ic181ced7f5f2a8ff834fdcfb4e5265b99eef1666
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11837
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/444365
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/ops/DashLinePathRenderer.cpp b/src/gpu/ops/DashLinePathRenderer.cpp
index ccfd5ba..d9e51125 100644
--- a/src/gpu/ops/DashLinePathRenderer.cpp
+++ b/src/gpu/ops/DashLinePathRenderer.cpp
@@ -10,7 +10,7 @@
 #include "src/gpu/GrAuditTrail.h"
 #include "src/gpu/GrGpu.h"
 #include "src/gpu/geometry/GrStyledShape.h"
-#include "src/gpu/ops/DashOp.h"
+#include "src/gpu/ops/GrDashOp.h"
 #include "src/gpu/ops/GrMeshDrawOp.h"
 #include "src/gpu/v1/SurfaceDrawContext_v1.h"
 
@@ -22,7 +22,7 @@
     if (args.fShape->style().isDashed() && args.fShape->asLine(pts, &inverted)) {
         // We should never have an inverse dashed case.
         SkASSERT(!inverted);
-        if (!DashOp::CanDrawDashLine(pts, args.fShape->style(), *args.fViewMatrix)) {
+        if (!GrDashOp::CanDrawDashLine(pts, args.fShape->style(), *args.fViewMatrix)) {
             return CanDrawPath::kNo;
         }
         return CanDrawPath::kYes;
@@ -33,25 +33,25 @@
 bool DashLinePathRenderer::onDrawPath(const DrawPathArgs& args) {
     GR_AUDIT_TRAIL_AUTO_FRAME(args.fContext->priv().auditTrail(),
                               "DashLinePathRenderer::onDrawPath");
-    DashOp::AAMode aaMode;
+    GrDashOp::AAMode aaMode;
     switch (args.fAAType) {
         case GrAAType::kNone:
-            aaMode = DashOp::AAMode::kNone;
+            aaMode = GrDashOp::AAMode::kNone;
             break;
         case GrAAType::kMSAA:
             // In this mode we will use aa between dashes but the outer border uses MSAA. Otherwise,
             // we can wind up with external edges antialiased and internal edges unantialiased.
-            aaMode = DashOp::AAMode::kCoverageWithMSAA;
+            aaMode = GrDashOp::AAMode::kCoverageWithMSAA;
             break;
         case GrAAType::kCoverage:
-            aaMode = DashOp::AAMode::kCoverage;
+            aaMode = GrDashOp::AAMode::kCoverage;
             break;
     }
     SkPoint pts[2];
     SkAssertResult(args.fShape->asLine(pts, nullptr));
-    GrOp::Owner op = DashOp::MakeDashLineOp(args.fContext, std::move(args.fPaint),
-                                            *args.fViewMatrix, pts, aaMode, args.fShape->style(),
-                                            args.fUserStencilSettings);
+    GrOp::Owner op =
+            GrDashOp::MakeDashLineOp(args.fContext, std::move(args.fPaint), *args.fViewMatrix, pts,
+                                     aaMode, args.fShape->style(), args.fUserStencilSettings);
     if (!op) {
         return false;
     }