add SkCanvas constructor that explicitly creates no_config with dimensions

tests/PictureTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
@@ skipping 904 matching lines @@
         REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
         REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
     }
 }
 
 /**
  * A canvas that records the number of clip commands.
  */
 class ClipCountingCanvas : public SkCanvas {
 public:
-    explicit ClipCountingCanvas(SkBaseDevice* device)
-        : SkCanvas(device)
+    explicit ClipCountingCanvas(int width, int height)
+        : INHERITED(width, height)
         , fClipCount(0){
     }
 
     virtual bool clipRect(const SkRect& r, SkRegion::Op op, bool doAA)
         SK_OVERRIDE {
         fClipCount += 1;
         return this->INHERITED::clipRect(r, op, doAA);
     }
 
     virtual bool clipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA)
@@ skipping 21 matching lines @@
     SkCanvas* canvas = picture.beginRecording(10, 10, 0);
 
     canvas->clipRect(SkRect::MakeEmpty(), SkRegion::kReplace_Op);
     // The following expanding clip should not be skipped.
     canvas->clipRect(SkRect::MakeXYWH(4, 4, 3, 3), SkRegion::kUnion_Op);
     // Draw something so the optimizer doesn't just fold the world.
     SkPaint p;
     p.setColor(SK_ColorBLUE);
     canvas->drawPaint(p);
 
-    SkBitmapDevice testDevice(SkBitmap::kNo_Config, 10, 10);
-    ClipCountingCanvas testCanvas(&testDevice);
+    ClipCountingCanvas testCanvas(10, 10);
     picture.draw(&testCanvas);
 
     // Both clips should be present on playback.
     REPORTER_ASSERT(reporter, testCanvas.getClipCount() == 2);
 }
 
 static void test_hierarchical(skiatest::Reporter* reporter) {
     SkBitmap bm;
     make_bm(&bm, 10, 10, SK_ColorRED, true);
 
@@ skipping 45 matching lines @@
 #endif
     test_peephole();
     test_gatherpixelrefs(reporter);
     test_gatherpixelrefsandrects(reporter);
     test_bitmap_with_encoded_data(reporter);
     test_clone_empty(reporter);
     test_clip_bound_opt(reporter);
     test_clip_expansion(reporter);
     test_hierarchical(reporter);
 }