Move font loading in gm tests and benches out of constructors

gm/colortype.cpp

 /*
  * Copyright 2013 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 "SkGradientShader.h"
 #include "../src/fonts/SkGScalerContext.h"
 
 class ColorTypeGM : public skiagm::GM {
 public:
-    ColorTypeGM() {
+    ColorTypeGM()
+        : fColorType(NULL) {
+    }
+
+    virtual ~ColorTypeGM() {
+        SkSafeUnref(fColorType);
+    }
+
+protected:
+    void onOnceBeforeDraw() override {
         const SkColor colors[] = {
             SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE,
             SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW
         };
         SkMatrix local;
         local.setRotate(180);
         SkShader* s = SkGradientShader::CreateSweep(0,0, colors, NULL,
                                                     SK_ARRAY_COUNT(colors), 0, &local);
 
         SkPaint paint;
         paint.setAntiAlias(true);
         paint.setShader(s)->unref();
 
         SkTypeface* orig = sk_tool_utils::create_portable_typeface("Times",
                                                             SkTypeface::kBold);
         if (NULL == orig) {
             orig = SkTypeface::RefDefault();
         }
         fColorType = SkNEW_ARGS(SkGTypeface, (orig, paint));
         orig->unref();
     }
 
-    virtual ~ColorTypeGM() {
-        fColorType->unref();
-    }
-
-protected:
     SkString onShortName() override {
         return SkString("colortype");
     }
 
     SkISize onISize() override {
         return SkISize::Make(640, 480);
     }
 
     void onDraw(SkCanvas* canvas) override {
         SkPaint paint;
         paint.setAntiAlias(true);
         paint.setTypeface(fColorType);
 
         for (SkScalar size = 10; size <= 100; size += 10) {
             paint.setTextSize(size);
             canvas->translate(0, paint.getFontMetrics(NULL));
             canvas->drawText("Hamburgefons", 12, 10, 10, paint);
         }
     }
 
 private:
     SkTypeface* fColorType;
 
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM( return SkNEW(ColorTypeGM); )