cc: GPU rasterize tiles synchronously in PrepareToDraw

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 8aa343b7b313b583b825cebc4e9fd72881ce35cd..31d3072bbf829d6ef0b80b971847dd2707534741 100644
--- a/cc/test/fake_tile_manager.cc
+++ b/cc/test/fake_tile_manager.cc
@@ -20,12 +20,24 @@ class FakeRasterizerImpl : public Rasterizer, public RasterizerTaskClient {
   // Overridden from Rasterizer:
   void SetClient(RasterizerClient* client) override {}
   void Shutdown() override {}
+  void RunTasks(RasterTaskQueue* queue) override {
+    for (auto& item : queue->items) {
+      RasterTask* task = item.task;
+
+      task->WillSchedule();
+      task->ScheduleOnOriginThread(this);
+      task->DidSchedule();
+
+      task->WillRun();
+      task->RunOnWorkerThread();
+      task->DidRun();
+
+      completed_tasks_.push_back(task);
+    }
+  }
   void ScheduleTasks(RasterTaskQueue* queue) override {
-    for (RasterTaskQueue::Item::Vector::const_iterator it =
-             queue->items.begin();
-         it != queue->items.end();
-         ++it) {
-      RasterTask* task = it->task;
+    for (auto& item : queue->items) {
+      RasterTask* task = item.task;
 
       task->WillSchedule();
       task->ScheduleOnOriginThread(this);
@@ -35,11 +47,7 @@ class FakeRasterizerImpl : public Rasterizer, public RasterizerTaskClient {
     }
   }
   void CheckForCompletedTasks() override {
-    for (RasterTask::Vector::iterator it = completed_tasks_.begin();
-         it != completed_tasks_.end();
-         ++it) {
-      RasterTask* task = it->get();
-
+    for (auto& task : completed_tasks_) {
       task->WillComplete();
       task->CompleteOnOriginThread(this);
       task->DidComplete();
@@ -90,7 +98,7 @@ void FakeTileManager::AssignMemoryToTiles(
   tiles_for_raster.clear();
 
   SetGlobalStateForTesting(state);
-  AssignGpuMemoryToTiles(&tiles_for_raster);
+  AssignGpuMemoryToTiles(&tiles_for_raster, std::numeric_limits<size_t>::max());
 }
 
 bool FakeTileManager::HasBeenAssignedMemory(Tile* tile) {