Style Change: NULL->nullptr
DOCS_PREVIEW= https://skia.org/?cl=1316233002

Review URL: https://codereview.chromium.org/1316233002
diff --git a/gm/displacement.cpp b/gm/displacement.cpp
index 4450fe2..353d14e 100644
--- a/gm/displacement.cpp
+++ b/gm/displacement.cpp
@@ -118,53 +118,53 @@
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kG_ChannelSelectorType,
-            0.0f, displ, NULL, &cropRect))->unref();
+            0.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 0, 200, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kB_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            16.0f, displ, NULL, &cropRect))->unref();
+            16.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 100, 200, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kB_ChannelSelectorType,
-            32.0f, displ, NULL, &cropRect))->unref();
+            32.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 200, 200, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kG_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            48.0f, displ, NULL, &cropRect))->unref();
+            48.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 300, 200, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            64.0f, displ, NULL, &cropRect))->unref();
+            64.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 400, 200, paint);
 
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kG_ChannelSelectorType,
-            40.0f, displ, NULL, &cropRect))->unref();
+            40.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 0, 300, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kB_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            40.0f, displ, NULL, &cropRect))->unref();
+            40.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 100, 300, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kB_ChannelSelectorType,
-            40.0f, displ, NULL, &cropRect))->unref();
+            40.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 200, 300, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kG_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            40.0f, displ, NULL, &cropRect))->unref();
+            40.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 300, 300, paint);
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kR_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            40.0f, displ, NULL, &cropRect))->unref();
+            40.0f, displ, nullptr, &cropRect))->unref();
         drawClippedBitmap(canvas, 400, 300, paint);
 
         // Tests for images of different sizes
@@ -199,7 +199,7 @@
         paint.setImageFilter(SkDisplacementMapEffect::Create(
             SkDisplacementMapEffect::kG_ChannelSelectorType,
             SkDisplacementMapEffect::kA_ChannelSelectorType,
-            40.0f, NULL))->unref();
+            40.0f, nullptr))->unref();
         drawClippedBitmap(canvas, 400, 400, paint);
     }