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

dm/DMCpuGMTask.h

 #ifndef DMCpuGMTask_DEFINED
 #define DMCpuGMTask_DEFINED
 
 #include "DMReporter.h"
 #include "DMTask.h"
 #include "DMTaskRunner.h"
 #include "SkBitmap.h"
 #include "SkString.h"
 #include "SkTemplates.h"
 #include "gm.h"
 
 // This is the main entry point for drawing GMs with the CPU.  Commandline
 // flags control whether this kicks off various comparison tasks when done.
 
 namespace DM {
 
 class CpuGMTask : public CpuTask {
 public:
     CpuGMTask(const char* config,
               Reporter*,
               TaskRunner*,
               skiagm::GMRegistry::Factory,
               SkColorType);
 
-    virtual void draw() SK_OVERRIDE;
-    virtual bool shouldSkip() const SK_OVERRIDE;
-    virtual SkString name() const SK_OVERRIDE { return fName; }
+    void draw() SK_OVERRIDE;
+    bool shouldSkip() const SK_OVERRIDE;
+    SkString name() const SK_OVERRIDE { return fName; }
 
 private:
     skiagm::GMRegistry::Factory fGMFactory;
     SkAutoTDelete<skiagm::GM> fGM;
     const SkString fName;
     const SkColorType fColorType;
 };
 
 }  // namespace DM
 
 #endif // DMCpuGMTask_DEFINED