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

gm/hairlines.cpp

Index: gm/hairlines.cpp
diff --git a/gm/hairlines.cpp b/gm/hairlines.cpp
index 9a0b8d55ceea780856aea90961d675eb112b5a8f..286cc82d56f0dcc1379c7cc3f89c8c2f1a7f5852 100644
--- a/gm/hairlines.cpp
+++ b/gm/hairlines.cpp
@@ -13,18 +13,18 @@ namespace skiagm {
 
 class HairlinesGM : public GM {
 protected:
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
 
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("hairlines");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE { return SkISize::Make(1250, 1250); }
+    SkISize onISize() SK_OVERRIDE { return SkISize::Make(1250, 1250); }
 
-    virtual void onOnceBeforeDraw() SK_OVERRIDE {
+    void onOnceBeforeDraw() SK_OVERRIDE {
         {
             SkPath* lineAnglesPath = &fPaths.push_back();
             enum {
@@ -164,7 +164,7 @@ protected:
         }
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         static const SkAlpha kAlphaValue[] = { 0xFF, 0x40 };
         static const SkScalar kWidths[] = { 0, 0.5f, 1.5f };