Remove use of MakeRenderTargetDirect from view system

samplecode/SampleApp.h

Index: samplecode/SampleApp.h
diff --git a/samplecode/SampleApp.h b/samplecode/SampleApp.h
index 8aea272c6d3f48c11ee23692d2b7bce899a8b552..75416426b463941f58f0cee1c7bc7d41225ea418 100644
--- a/samplecode/SampleApp.h
+++ b/samplecode/SampleApp.h
@@ -74,7 +74,7 @@ public:
 
         // called before drawing. should install correct device
         // type on the canvas. Will skip drawing if returns false.
-        virtual SkSurface* createSurface(DeviceType dType, SampleWindow* win) = 0;
+        virtual sk_sp<SkSurface> makeSurface(DeviceType dType, SampleWindow* win) = 0;
 
         // called after drawing, should get the results onto the
         // screen.
@@ -90,7 +90,7 @@ public:
         virtual GrContext* getGrContext() = 0;
 
         // return the GrRenderTarget backing gpu devices (nullptr if not built with GPU support)
-        virtual GrRenderTarget* getGrRenderTarget() = 0;
+        virtual int numColorSamples() const = 0;
 
         // return the color depth of the output device
         virtual int getColorBits() = 0;
@@ -102,13 +102,13 @@ public:
     SampleWindow(void* hwnd, int argc, char** argv, DeviceManager*);
     virtual ~SampleWindow();
 
-    SkSurface* createSurface() override {
-        SkSurface* surface = nullptr;
+    sk_sp<SkSurface> makeSurface() override {
+        sk_sp<SkSurface> surface;
         if (fDevManager) {
-            surface = fDevManager->createSurface(fDeviceType, this);
+            surface = fDevManager->makeSurface(fDeviceType, this);
         }
-        if (nullptr == surface) {
-            surface = this->INHERITED::createSurface();
+        if (!surface) {
+            surface = this->INHERITED::makeSurface();
         }
         return surface;
     }