Staged removal of SkPicture-derived classes

This CL removes the SkPicture-derived classes (with a flag to keeps clients working). In the process it also lightens the recording factory function so it is no longer ref counted).

The only interesting bits are in SkPicture* and Sk*Picture.*

R=reed@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/238273012

git-svn-id: http://skia.googlecode.com/svn/trunk@14251 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 5020ec2..67be5be 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -1376,7 +1376,7 @@
         pdfDevice->unref();
         canvas = fPdfCanvas;
     } else if (kPicture_DeviceType == fDeviceType) {
-        canvas = fRecorder.beginRecording(9999, 9999);
+        canvas = fRecorder.beginRecording(9999, 9999, NULL, 0);
     } else {
 #if SK_SUPPORT_GPU
         if (kNullGPU_DeviceType != fDeviceType)