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

gm/getpostextpath.cpp

Index: gm/getpostextpath.cpp
diff --git a/gm/getpostextpath.cpp b/gm/getpostextpath.cpp
index 8cad512c3ce68a03b087091f9df6d80fc16d8382..c5e01b69a683247cad2dedfbce4d0d3740668887 100644
--- a/gm/getpostextpath.cpp
+++ b/gm/getpostextpath.cpp
@@ -16,7 +16,7 @@ public:
     GetPosTextPathGM() {}
 
 protected:
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
@@ -34,7 +34,7 @@ protected:
         canvas->drawPath(path, paint);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         // explicitly add spaces, to test a prev. bug
         const char* text = "Ham bur ge fons";
         int len = SkToInt(strlen(text));