Cleanup: Another round of override fixes.

gm/texdata.cpp

Index: gm/texdata.cpp
diff --git a/gm/texdata.cpp b/gm/texdata.cpp
index b8c2431c9b7444d5361d9446100d88155e2fd143..379898a741dfbc2a8a1d46d3eb39e2180556846e 100644
--- a/gm/texdata.cpp
+++ b/gm/texdata.cpp
@@ -27,17 +27,17 @@ public:
     }
 
 protected:
-    virtual SkString onShortName() {
+    virtual SkString onShortName() SK_OVERRIDE {
         return SkString("texdata");
     }
 
-    virtual SkISize onISize() {
+    virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(2*S, 2*S);
     }
 
     virtual uint32_t onGetFlags() const SK_OVERRIDE { return kGPUOnly_Flag; }
 
-    virtual void onDraw(SkCanvas* canvas) {
+    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         GrRenderTarget* target = canvas->internal_private_accessTopLayerRenderTarget();
         GrContext* ctx = canvas->getGrContext();
         if (ctx && target) {