Added preliminary support for tile rasterization with Ganesh

cc/test/fake_tile_manager.cc

Index: cc/test/fake_tile_manager.cc
diff --git a/cc/test/fake_tile_manager.cc b/cc/test/fake_tile_manager.cc
index 907e0fadf130ce718f1638c8395f4b69cea3cdd6..db6108f2edbe0efee936a803c824d9b8cb6a1473 100644
--- a/cc/test/fake_tile_manager.cc
+++ b/cc/test/fake_tile_manager.cc
@@ -7,10 +7,32 @@
 #include <deque>
 #include <limits>
 
+#include "cc/resources/gpu_rasterizer.h"
 #include "cc/resources/raster_worker_pool.h"
 
 namespace cc {
 
+class FakeGpuRasterizer : public GpuRasterizer {
+ public:
+  FakeGpuRasterizer()
+      : GpuRasterizer(NULL, NULL), completed_tiles_(0) {}
+  virtual ~FakeGpuRasterizer() {}
+
+  virtual void Rasterize(
+      const Queue& queue,
+      RenderingStatsInstrumentation* rendering_stats_instrumentation) OVERRIDE {
+    for (RasterTaskVector::const_iterator it = queue.raster_tasks_.begin();
+         it != queue.raster_tasks_.end(); ++it) {
+      RasterTask* task = *it;
+      Tile* tile = task->tile_;
+      client_->OnGpuRasterTaskCompleted(tile, task->resource_.Pass());
+      completed_tiles_++;
+    }
+  }
+
+  int completed_tiles_;
+};
+
 namespace {
 
 class FakeRasterWorkerPool : public RasterWorkerPool {
@@ -52,6 +74,7 @@ class FakeRasterWorkerPool : public RasterWorkerPool {
 FakeTileManager::FakeTileManager(TileManagerClient* client)
     : TileManager(client,
                   NULL,
+                  make_scoped_ptr<GpuRasterizer>(new FakeGpuRasterizer),
                   make_scoped_ptr<RasterWorkerPool>(new FakeRasterWorkerPool),
                   1,
                   std::numeric_limits<unsigned>::max(),
@@ -62,6 +85,7 @@ FakeTileManager::FakeTileManager(TileManagerClient* client,
                                  ResourceProvider* resource_provider)
     : TileManager(client,
                   resource_provider,
+                  make_scoped_ptr<GpuRasterizer>(new FakeGpuRasterizer),
                   make_scoped_ptr<RasterWorkerPool>(new FakeRasterWorkerPool),
                   1,
                   std::numeric_limits<unsigned>::max(),
@@ -73,6 +97,7 @@ FakeTileManager::FakeTileManager(TileManagerClient* client,
                                  size_t raster_task_limit_bytes)
     : TileManager(client,
                   resource_provider,
+                  make_scoped_ptr<GpuRasterizer>(new FakeGpuRasterizer),
                   make_scoped_ptr<RasterWorkerPool>(new FakeRasterWorkerPool),
                   1,
                   raster_task_limit_bytes,
@@ -114,4 +139,10 @@ void FakeTileManager::Release(TileBundle* bundle) {
   in_bundle_cleanup_ = false;
 }
 
+int FakeTileManager::CompletedGpuRasterizedTiles() {
+  FakeGpuRasterizer* gpu_rasterizer =
+      static_cast<FakeGpuRasterizer*>(GetGpuRasterizerForTest());
+  return gpu_rasterizer->completed_tiles_;
+}
+
 }  // namespace cc