Move clip mask generation into GrReducedClip

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 5f4e663580a7e525cdac0f07f110a9b7f70e909e..40799a69fd592eb6c8d1dd3d05caab2f9eef59ae 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -625,9 +625,9 @@ sk_sp<GrDrawContext> GrContextPriv::makeWrappedDrawContext(sk_sp<GrRenderTarget>
                                                            sk_sp<SkColorSpace> colorSpace,
                                                            const SkSurfaceProps* surfaceProps) {
     ASSERT_SINGLE_OWNER_PRIV
-    return fContext->drawingManager()->makeDrawContext(std::move(rt),
-                                                       std::move(colorSpace),
-                                                       surfaceProps);
+    return this->drawingManager()->makeDrawContext(std::move(rt),
+                                                   std::move(colorSpace),
+                                                   surfaceProps);
 }
 
 sk_sp<GrDrawContext> GrContextPriv::makeBackendTextureDrawContext(const GrBackendTextureDesc& desc, 
@@ -642,8 +642,8 @@ sk_sp<GrDrawContext> GrContextPriv::makeBackendTextureDrawContext(const GrBacken
         return nullptr;
     }
 
-    return fContext->drawingManager()->makeDrawContext(sk_ref_sp(surface->asRenderTarget()),
-                                                       std::move(colorSpace), props);
+    return this->drawingManager()->makeDrawContext(sk_ref_sp(surface->asRenderTarget()),
+                                                   std::move(colorSpace), props);
 }
 
 sk_sp<GrDrawContext> GrContextPriv::makeBackendRenderTargetDrawContext(
@@ -657,9 +657,9 @@ sk_sp<GrDrawContext> GrContextPriv::makeBackendRenderTargetDrawContext(
         return nullptr;
     }
 
-    return fContext->drawingManager()->makeDrawContext(std::move(rt),
-                                                       std::move(colorSpace),
-                                                       surfaceProps);
+    return this->drawingManager()->makeDrawContext(std::move(rt),
+                                                   std::move(colorSpace),
+                                                   surfaceProps);
 }
 
 sk_sp<GrDrawContext> GrContextPriv::makeBackendTextureAsRenderTargetDrawContext(
@@ -674,9 +674,9 @@ sk_sp<GrDrawContext> GrContextPriv::makeBackendTextureAsRenderTargetDrawContext(
         return nullptr;
     }
 
-    return fContext->drawingManager()->makeDrawContext(sk_ref_sp(surface->asRenderTarget()),
-                                                       std::move(colorSpace),
-                                                       surfaceProps);
+    return this->drawingManager()->makeDrawContext(sk_ref_sp(surface->asRenderTarget()),
+                                                   std::move(colorSpace),
+                                                   surfaceProps);
 }
 
 sk_sp<GrDrawContext> GrContext::makeDrawContext(SkBackingFit fit,