Split SkDevice into SkBaseDevice and SkBitmapDevice

https://codereview.chromium.org/22978012/



git-svn-id: http://skia.googlecode.com/svn/trunk@10995 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleApp.h b/samplecode/SampleApp.h
index 61e6c5d..9328f15 100644
--- a/samplecode/SampleApp.h
+++ b/samplecode/SampleApp.h
@@ -61,7 +61,7 @@
     /**
      * SampleApp ports can subclass this manager class if they want to:
      *      * filter the types of devices supported
-     *      * customize plugging of SkDevice objects into an SkCanvas
+     *      * customize plugging of SkBaseDevice objects into an SkCanvas
      *      * customize publishing the results of draw to the OS window
      *      * manage GrContext / GrRenderTarget lifetimes
      */