Fix up all the easy virtual ... SK_OVERRIDE cases.

samplecode/SampleStrokePath.cpp

Index: samplecode/SampleStrokePath.cpp
diff --git a/samplecode/SampleStrokePath.cpp b/samplecode/SampleStrokePath.cpp
index ab75fb3fe6a01ed83d83860b1e9784ddb7f9f00a..4f6e3cc743579c26a30b4ba0d1a23902d474faab 100644
--- a/samplecode/SampleStrokePath.cpp
+++ b/samplecode/SampleStrokePath.cpp
@@ -124,7 +124,7 @@ public:
 
 protected:
     // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) SK_OVERRIDE {
+    bool onQuery(SkEvent* evt) SK_OVERRIDE {
         if (SampleCode::TitleQ(*evt)) {
             SampleCode::TitleR(evt, "StrokePath");
             return true;
@@ -146,7 +146,7 @@ protected:
         }
     }
 
-    virtual void onDrawContent(SkCanvas* canvas) SK_OVERRIDE {
+    void onDrawContent(SkCanvas* canvas) SK_OVERRIDE {
         test_huge_stroke(canvas); return;
         canvas->translate(SkIntToScalar(10), SkIntToScalar(10));