Remove SkTileGrid (except for TileGridInfo).

bench/PicturePlaybackBench.cpp

Index: bench/PicturePlaybackBench.cpp
diff --git a/bench/PicturePlaybackBench.cpp b/bench/PicturePlaybackBench.cpp
index a1f2daeca5d92d36b17a2c361e173792dc499fc3..1701d140d5cf3ace3f0f5a9453670cd63b24f68a 100644
--- a/bench/PicturePlaybackBench.cpp
+++ b/bench/PicturePlaybackBench.cpp
@@ -144,7 +144,7 @@ DEF_BENCH( return new PosTextPlaybackBench(false); )
 // Chrome draws into small tiles with impl-side painting.
 // This benchmark measures the relative performance of our bounding-box hierarchies,
 // both when querying tiles perfectly and when not.
-enum BBH  { kNone, kRTree, kTileGrid };
+enum BBH  { kNone, kRTree };
 enum Mode { kTiled, kRandom };
 class TiledPlaybackBench : public Benchmark {
 public:
@@ -152,7 +152,6 @@ public:
         switch (fBBH) {
             case kNone:     fName.append("_none"    ); break;
             case kRTree:    fName.append("_rtree"   ); break;
-            case kTileGrid: fName.append("_tilegrid"); break;
         }
         switch (fMode) {
             case kTiled:  fName.append("_tiled" ); break;
@@ -164,12 +163,10 @@ public:
     virtual SkIPoint onGetSize() SK_OVERRIDE { return SkIPoint::Make(1024,1024); }
 
     virtual void onPreDraw() SK_OVERRIDE {
-        SkTileGridFactory::TileGridInfo info = { { 256, 256 }, {0,0}, {0,0} };
         SkAutoTDelete<SkBBHFactory> factory;
         switch (fBBH) {
             case kNone:                                                 break;
             case kRTree:    factory.reset(new SkRTreeFactory);          break;
-            case kTileGrid: factory.reset(new SkTileGridFactory(info)); break;
         }
 
         SkPictureRecorder recorder;
@@ -220,5 +217,3 @@ DEF_BENCH( return new TiledPlaybackBench(kNone,     kRandom); )
 DEF_BENCH( return new TiledPlaybackBench(kNone,     kTiled ); )
 DEF_BENCH( return new TiledPlaybackBench(kRTree,    kRandom); )
 DEF_BENCH( return new TiledPlaybackBench(kRTree,    kTiled ); )
-DEF_BENCH( return new TiledPlaybackBench(kTileGrid, kRandom); )
-DEF_BENCH( return new TiledPlaybackBench(kTileGrid, kTiled ); )