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

This fixes every case where virtual and SK_OVERRIDE were on the same line,
which should be the bulk of cases.  We'll have to manually clean up the rest
over time unless I level up in regexes.

for f in (find . -type f); perl -p -i -e 's/virtual (.*)SK_OVERRIDE/\1SK_OVERRIDE/g' $f; end

BUG=skia:

Review URL: https://codereview.chromium.org/806653007
diff --git a/bench/FSRectBench.cpp b/bench/FSRectBench.cpp
index 3c53042..af99015 100644
--- a/bench/FSRectBench.cpp
+++ b/bench/FSRectBench.cpp
@@ -20,9 +20,9 @@
     FSRectBench() : fInit(false) { }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE { return "fullscreen_rects"; }
+    const char* onGetName() SK_OVERRIDE { return "fullscreen_rects"; }
 
-    virtual void onPreDraw() SK_OVERRIDE {
+    void onPreDraw() SK_OVERRIDE {
         if (!fInit) {
             SkRandom rand;
             static const SkScalar kMinOffset = 0;
@@ -39,7 +39,7 @@
         }
     }
 
-    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         SkPaint paint;
         for (int i = 0; i < loops; ++i) {
             paint.setColor(fColors[i % N]);