remove unnecessary save/clip/restore

gm/imagefilterscropped.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkCanvas.h"
 #include "SkColorFilter.h"
@@ skipping 16 matching lines @@
     canvas->clipRect(r);
     canvas->drawPaint(paint);
     canvas->restore();
 }
 
 static void draw_path(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
     SkPaint paint;
     paint.setColor(SK_ColorMAGENTA);
     paint.setImageFilter(imf);
     paint.setAntiAlias(true);
-    canvas->save();
-    canvas->clipRect(r);
     canvas->drawCircle(r.centerX(), r.centerY(), r.width()*2/5, paint);
-    canvas->restore();
 }
 
 static void draw_text(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
     SkPaint paint;
     paint.setImageFilter(imf);
     paint.setColor(SK_ColorGREEN);
     paint.setAntiAlias(true);
     sk_tool_utils::set_portable_typeface(&paint);
     paint.setTextSize(r.height()/2);
     paint.setTextAlign(SkPaint::kCenter_Align);
-    canvas->save();
-    canvas->clipRect(r);
     canvas->drawText("Text", 4, r.centerX(), r.centerY(), paint);
-    canvas->restore();
 }
 
 static void draw_bitmap(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
     SkPaint paint;
 
     SkIRect bounds;
     r.roundOut(&bounds);
 
     SkBitmap bm;
     bm.allocN32Pixels(bounds.width(), bounds.height());
     bm.eraseColor(SK_ColorTRANSPARENT);
     SkCanvas c(bm);
     draw_path(&c, r, NULL);
 
     paint.setImageFilter(imf);
-    canvas->save();
-    canvas->clipRect(r);
     canvas->drawBitmap(bm, 0, 0, &paint);
-    canvas->restore();
 }
 
 static void draw_sprite(SkCanvas* canvas, const SkRect& r, SkImageFilter* imf) {
     SkPaint paint;
 
     SkIRect bounds;
     r.roundOut(&bounds);
 
     SkBitmap bm;
     bm.allocN32Pixels(bounds.width(), bounds.height());
@@ skipping 89 matching lines @@
     }
 
 private:
     typedef GM INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static skiagm::GM* MyFactory(void*) { return new ImageFiltersCroppedGM; }
 static skiagm::GMRegistry reg(MyFactory);