use surface in SkView/SampleApp

samplecode/SampleApp.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleApp.h"
 
 #include "OverView.h"
@@ skipping 253 matching lines @@
         SkSafeUnref(fCurIntf);
         fCurIntf = NULL;
 
         SkSafeUnref(fCurRenderTarget);
         fCurRenderTarget = NULL;
 #endif
         win->detach();
         fBackend = kNone_BackEndType;
     }
 
-    virtual SkCanvas* createCanvas(SampleWindow::DeviceType dType,
-                                   SampleWindow* win) {
+    virtual SkSurface* createSurface(SampleWindow::DeviceType dType,
+                                     SampleWindow* win) SK_OVERRIDE {
 #if SK_SUPPORT_GPU
         if (IsGpuDeviceType(dType) && fCurContext) {
-            SkAutoTUnref<SkBaseDevice> device(SkGpuDevice::Create(fCurRenderTarget));
-            return new SkCanvas(device);
-        } else
+            return SkSurface::NewRenderTargetDirect(fCurRenderTarget);
+        }
 #endif
-        {
-            return NULL;
-        }
+        return NULL;
     }
 
     virtual void publishCanvas(SampleWindow::DeviceType dType,
                                SkCanvas* canvas,
                                SampleWindow* win) {
 #if SK_SUPPORT_GPU
         if (fCurContext) {
             // in case we have queued drawing calls
             fCurContext->flush();
 
@@ skipping 2101 matching lines @@
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
     SkGraphics::Term();
 }