Initial error handling code

src/ports/SkGlobalInitialization_default.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 "SkTypes.h"
 
 #include "SkBitmapProcShader.h"
@@ skipping 44 matching lines @@
 #include "SkOffsetImageFilter.h"
 #include "SkPerlinNoiseShader.h"
 #include "SkPixelXorXfermode.h"
 #include "SkRectShaderImageFilter.h"
 #include "SkStippleMaskFilter.h"
 #include "SkTableColorFilter.h"
 #include "SkTestImageFilters.h"
 #include "SkTileImageFilter.h"
 #include "SkXfermodeImageFilter.h"
 
-void SkFlattenable::InitializeFlattenables() {
+void SkFlattenable::InitializeFlattenablesIfNeeded() {
+    static bool initialized = false;
+    if (initialized) {
+        return;
+    }
 
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkAnnotation)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkAvoidXfermode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBicubicImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBitmapProcShader)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBitmapSource)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurDrawLooper)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkColorMatrixFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkColorShader)
@@ skipping 38 matching lines @@
 
     SkArithmeticMode::InitializeFlattenables();
     SkBlurMaskFilter::InitializeFlattenables();
     SkColorFilter::InitializeFlattenables();
     SkGradientShader::InitializeFlattenables();
     SkImages::InitializeFlattenables();
     SkLightingImageFilter::InitializeFlattenables();
     SkLumaMaskXfermode::InitializeFlattenables();
     SkTableColorFilter::InitializeFlattenables();
     SkXfermode::InitializeFlattenables();
+
+    initialized = true;
 }
+