3 files changed, 15 insertions, 15 deletions

diff --git a/samplecode/SampleAARects.cpp b/samplecode/SampleAARects.cpp
index 3676240ba8..f83ab31f55 100644
--- a/samplecode/SampleAARects.cpp
+++ b/samplecode/SampleAARects.cpp
@@ -38,16 +38,16 @@ class AARectView : public SampleView {
     enum {
         N = 64
     };
-public:
-    AARectView() {
+
+protected:
+    void onOnceBeforeDraw() override {
         fBitmap = createBitmap(N);
 
         fWidth = N;
     }
 
-protected:
     // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
+    bool onQuery(SkEvent* evt) override {
         if (SampleCode::TitleQ(*evt)) {
             SampleCode::TitleR(evt, "AA Rects");
             return true;
@@ -55,7 +55,7 @@ protected:
         return this->INHERITED::onQuery(evt);
     }
 
-    virtual void onDrawContent(SkCanvas* canvas) {
+    void onDrawContent(SkCanvas* canvas) override {
         canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
 
         SkPaint bluePaint;
diff --git a/samplecode/SampleColorFilter.cpp b/samplecode/SampleColorFilter.cpp
index 60ab0134ef..efda5e9199 100644
--- a/samplecode/SampleColorFilter.cpp
+++ b/samplecode/SampleColorFilter.cpp
@@ -113,8 +113,9 @@ class ColorFilterView : public SampleView {
     enum {
         N = 64
     };
-public:
-    ColorFilterView() {
+
+protected:
+    void onOnceBeforeDraw() override {
         fBitmap = createBitmap(N);
         fShader = sk_tool_utils::create_checkerboard_shader(
                 0xFFCCCCCC, 0xFFFFFFFF, 12);
@@ -124,9 +125,8 @@ public:
         }
     }
 
-protected:
     // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
+    bool onQuery(SkEvent* evt) override {
         if (SampleCode::TitleQ(*evt)) {
             SampleCode::TitleR(evt, "ColorFilter");
             return true;
@@ -134,13 +134,13 @@ protected:
         return this->INHERITED::onQuery(evt);
     }
 
-    virtual void onDrawBackground(SkCanvas* canvas) {
+    void onDrawBackground(SkCanvas* canvas) override {
         SkPaint paint;
         paint.setShader(fShader);
         canvas->drawPaint(paint);
     }
 
-    virtual void onDrawContent(SkCanvas* canvas) {
+    void onDrawContent(SkCanvas* canvas) override {
         if (false) {
             SkPaint p;
             p.setAntiAlias(true);
diff --git a/samplecode/SampleDither.cpp b/samplecode/SampleDither.cpp
index fbe25ddcaa..1dd42710ce 100644
--- a/samplecode/SampleDither.cpp
+++ b/samplecode/SampleDither.cpp
@@ -108,7 +108,8 @@ public:
     SkBitmap    fBM, fBMPreDither, fBM16;
     SkScalar fAngle;
 
-    DitherView() {
+protected:
+    void onOnceBeforeDraw() override {
         make_bm(&fBM);
         make_bm(&fBMPreDither);
         pre_dither(fBMPreDither);
@@ -119,9 +120,8 @@ public:
         this->setBGColor(0xFF181818);
     }
 
-protected:
     // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
+    bool onQuery(SkEvent* evt) override {
         if (SampleCode::TitleQ(*evt)) {
             SampleCode::TitleR(evt, "Dither");
             return true;
@@ -129,7 +129,7 @@ protected:
         return this->INHERITED::onQuery(evt);
     }
 
-    virtual void onDrawContent(SkCanvas* canvas) {
+    void onDrawContent(SkCanvas* canvas) override {
         SkPaint paint;
         SkScalar x = SkIntToScalar(10);
         SkScalar y = SkIntToScalar(10);