Add preliminary support for hw-accelerated tile rasterization.

cc/resources/raster_worker_pool_unittest.cc

Index: cc/resources/raster_worker_pool_unittest.cc
diff --git a/cc/resources/raster_worker_pool_unittest.cc b/cc/resources/raster_worker_pool_unittest.cc
index 716edf6c5263ef1380f60e6a0617c22bfe93c46d..934d0a990095a8b5ed283f52edbfe0cc98bd56ff 100644
--- a/cc/resources/raster_worker_pool_unittest.cc
+++ b/cc/resources/raster_worker_pool_unittest.cc
@@ -42,6 +42,9 @@ class TestRasterWorkerPoolTaskImpl : public internal::RasterWorkerPoolTask {
     did_raster_ = true;
     return true;
   }
+  virtual void RunOnOriginThread() OVERRIDE {
+    did_raster_ = true;
+  }
   virtual void CompleteOnOriginThread() OVERRIDE {
     reply_.Run(PicturePileImpl::Analysis(), !HasFinishedRunning(), did_raster_);
   }
@@ -104,11 +107,12 @@ class RasterWorkerPoolTest : public testing::Test,
   void RunTest(bool use_map_image) {
     if (use_map_image) {
       raster_worker_pool_ = ImageRasterWorkerPool::Create(
-          resource_provider(), 1, GL_TEXTURE_2D);
+          resource_provider(), NULL, 1, GL_TEXTURE_2D);
     } else {
       raster_worker_pool_ =
           PixelBufferRasterWorkerPool::Create(
               resource_provider(),
+              NULL,
               1,
               std::numeric_limits<size_t>::max());
     }