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/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp
index b8f40c8..1160f93 100644
--- a/bench/ImageCacheBench.cpp
+++ b/bench/ImageCacheBench.cpp
@@ -24,8 +24,8 @@
 
     TestRec(const TestKey& key, intptr_t value) : fKey(key), fValue(value) {}
 
-    virtual const Key& getKey() const SK_OVERRIDE { return fKey; }
-    virtual size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); }
+    const Key& getKey() const SK_OVERRIDE { return fKey; }
+    size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); }
 
     static bool Visitor(const SkResourceCache::Rec&, void*) {
         return true;
@@ -49,11 +49,11 @@
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return "imagecache";
     }
 
-    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
         if (fCache.getTotalBytesUsed() == 0) {
             this->populateCache();
         }