Remove SkRecorder's kWriteOnly mode.

tests/RecorderTest.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 
 #include "SkRecord.h"
@@ skipping 22 matching lines @@
             record.visit<void>(i, *this);
         }
     }
 
 private:
     int fHistogram[kRecordTypes];
 };
 
 DEF_TEST(Recorder, r) {
     SkRecord record;
-    SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, 1920, 1080);
+    SkRecorder recorder(&record, 1920, 1080);
 
     recorder.drawRect(SkRect::MakeWH(10, 10), SkPaint());
 
     Tally tally;
     tally.apply(record);
     REPORTER_ASSERT(r, 1 == tally.count<SkRecords::DrawRect>());
 }
 
 // Regression test for leaking refs held by optional arguments.
 DEF_TEST(Recorder_RefLeaking, r) {
     // We use SaveLayer to test:
     //   - its SkRect argument is optional and SkRect is POD.  Just testing that that works.
     //   - its SkPaint argument is optional and SkPaint is not POD.  The bug was here.
 
     SkRect bounds = SkRect::MakeWH(320, 240);
     SkPaint paint;
     paint.setShader(SkNEW(SkEmptyShader))->unref();
 
     REPORTER_ASSERT(r, paint.getShader()->unique());
     {
         SkRecord record;
-        SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, 1920, 1080);
+        SkRecorder recorder(&record, 1920, 1080);
         recorder.saveLayer(&bounds, &paint);
         REPORTER_ASSERT(r, !paint.getShader()->unique());
     }
     REPORTER_ASSERT(r, paint.getShader()->unique());
 }