Update unit tests after SkFlattenable::getFactory const-ification.

skia/ext/lazy_pixel_ref_utils_unittest.cc

Index: skia/ext/lazy_pixel_ref_utils_unittest.cc
diff --git a/skia/ext/lazy_pixel_ref_utils_unittest.cc b/skia/ext/lazy_pixel_ref_utils_unittest.cc
index c3a2e2725e387b461b955039c98519e3e59611df..054613341fd13b5e09faa65d2f0a1d478abd064f 100644
--- a/skia/ext/lazy_pixel_ref_utils_unittest.cc
+++ b/skia/ext/lazy_pixel_ref_utils_unittest.cc
@@ -29,7 +29,7 @@ class TestPixelRef : public SkPixelRef {
   TestPixelRef(int width, int height);
   virtual ~TestPixelRef();
 
-  virtual SkFlattenable::Factory getFactory() OVERRIDE;
+  virtual SkFlattenable::Factory getFactory() const OVERRIDE;
   virtual void* onLockPixels(SkColorTable** color_table) OVERRIDE;
   virtual void onUnlockPixels() OVERRIDE {}
   virtual SkPixelRef* deepCopy(SkBitmap::Config config, const SkIRect* subset)
@@ -44,7 +44,7 @@ class TestLazyPixelRef : public skia::LazyPixelRef {
   TestLazyPixelRef(int width, int height);
   virtual ~TestLazyPixelRef();
 
-  virtual SkFlattenable::Factory getFactory() OVERRIDE;
+  virtual SkFlattenable::Factory getFactory() const OVERRIDE;
   virtual void* onLockPixels(SkColorTable** color_table) OVERRIDE;
   virtual void onUnlockPixels() OVERRIDE {}
   virtual bool PrepareToDecode(const PrepareParams& params) OVERRIDE;
@@ -94,7 +94,7 @@ TestPixelRef::TestPixelRef(int width, int height)
 
 TestPixelRef::~TestPixelRef() {}
 
-SkFlattenable::Factory TestPixelRef::getFactory() { return NULL; }
+SkFlattenable::Factory TestPixelRef::getFactory() const { return NULL; }
 
 void* TestPixelRef::onLockPixels(SkColorTable** color_table) {
   return pixels_.get();
@@ -111,7 +111,7 @@ TestLazyPixelRef::TestLazyPixelRef(int width, int height)
 
 TestLazyPixelRef::~TestLazyPixelRef() {}
 
-SkFlattenable::Factory TestLazyPixelRef::getFactory() { return NULL; }
+SkFlattenable::Factory TestLazyPixelRef::getFactory() const { return NULL; }
 
 void* TestLazyPixelRef::onLockPixels(SkColorTable** color_table) {
   return pixels_.get();