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/src/gpu/GrGeometryProcessor.h b/src/gpu/GrGeometryProcessor.h
index d88f3e6..ad75d23 100644
--- a/src/gpu/GrGeometryProcessor.h
+++ b/src/gpu/GrGeometryProcessor.h
@@ -375,7 +375,7 @@
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE;
 
-    virtual GrGLGeometryProcessor* createGLInstance(const GrBatchTracker& bt) const SK_OVERRIDE;
+    GrGLGeometryProcessor* createGLInstance(const GrBatchTracker& bt) const SK_OVERRIDE;
 
 private:
     GrPathProcessor(GrColor color, const SkMatrix& viewMatrix, const SkMatrix& localMatrix);