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

dm/DMPipeTask.h

 #ifndef DMPipeTask_DEFINED
 #define DMPipeTask_DEFINED
 
 #include "DMTask.h"
 #include "SkBitmap.h"
 #include "SkString.h"
 #include "SkTemplates.h"
 #include "gm.h"
 
 // Sends a GM through a pipe, draws it, and compares against the reference bitmap.
 
 namespace DM {
 
 class PipeTask : public CpuTask {
 
 public:
     enum Mode {
         kInProcess_Mode,
         kCrossProcess_Mode,
         kSharedAddress_Mode,
     };
 
     PipeTask(const Task& parent,        // PipeTask must be a child task.  Pass its parent here.
              skiagm::GM*,               // GM to run through a pipe.  Takes ownership.
              SkBitmap reference,        // Bitmap to compare pipe results to.
              Mode);
 
-    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:
     const uint32_t fFlags;
     const SkString fName;
     SkAutoTDelete<skiagm::GM> fGM;
     const SkBitmap fReference;
 };
 
 }  // namespace DM
 
 #endif  // DMPipeTask_DEFINED