Split SkDevice into SkBaseDevice and SkBitmapDevice

experimental/iOSSampleApp/SkSampleUIView.mm

 #import "SkSampleUIView.h"
 
 //#define SKWIND_CONFIG       SkBitmap::kRGB_565_Config
 #define SKWIND_CONFIG       SkBitmap::kARGB_8888_Config
 #define SKGL_CONFIG         kEAGLColorFormatRGB565
 //#define SKGL_CONFIG         kEAGLColorFormatRGBA8
 
 #define FORCE_REDRAW
 
 #include "SkCanvas.h"
@@ skipping 118 matching lines @@
             case SampleWindow::kPicture_DeviceType:
                 // fallthrough
 #if SK_ANGLE
             case SampleWindow::kANGLE_DeviceType:
 #endif
                 break;
 #if SK_SUPPORT_GPU
             case SampleWindow::kGPU_DeviceType:
             case SampleWindow::kNullGPU_DeviceType:
                 if (fCurContext) {
-                    SkAutoTUnref<SkDevice> device(new SkGpuDevice(fCurContext,
-                                                                  fCurRenderTarget));
+                    SkAutoTUnref<SkBaseDevice> device(new SkGpuDevice(fCurContext,
+                                                                      fCurRenderTarget));
                     return new SkCanvas(device);
                 } else {
                     return NULL;
                 }
                 break;
 #endif
             default:
                 SkASSERT(false);
                 return NULL;
         }
@@ skipping 335 matching lines @@
     glBindRenderbuffer(GL_RENDERBUFFER, fGL.fRenderbuffer);
     glGetRenderbufferParameteriv(GL_RENDERBUFFER,
                                  GL_RENDERBUFFER_STENCIL_SIZE,
                                  &info->fStencilBits);
     glGetRenderbufferParameteriv(GL_RENDERBUFFER,
                                  GL_RENDERBUFFER_SAMPLES_APPLE,
                                  &info->fSampleCount);
 }
 
 @end