Convert //cc from scoped_ptr to std::unique_ptr.

cc/test/fake_tile_manager_client.cc

Index: cc/test/fake_tile_manager_client.cc
diff --git a/cc/test/fake_tile_manager_client.cc b/cc/test/fake_tile_manager_client.cc
index 2c5734f5bc98cc8762b40eeccf03289bbc3622bd..4f46953adb23742c8507ae5d6b411c798b1e2e12 100644
--- a/cc/test/fake_tile_manager_client.cc
+++ b/cc/test/fake_tile_manager_client.cc
@@ -14,14 +14,14 @@ FakeTileManagerClient::FakeTileManagerClient() {
 FakeTileManagerClient::~FakeTileManagerClient() {
 }
 
-scoped_ptr<RasterTilePriorityQueue> FakeTileManagerClient::BuildRasterQueue(
-    TreePriority tree_priority,
-    RasterTilePriorityQueue::Type type) {
+std::unique_ptr<RasterTilePriorityQueue>
+FakeTileManagerClient::BuildRasterQueue(TreePriority tree_priority,
+                                        RasterTilePriorityQueue::Type type) {
   return nullptr;
 }
 
-scoped_ptr<EvictionTilePriorityQueue> FakeTileManagerClient::BuildEvictionQueue(
-    TreePriority tree_priority) {
+std::unique_ptr<EvictionTilePriorityQueue>
+FakeTileManagerClient::BuildEvictionQueue(TreePriority tree_priority) {
   return nullptr;
 }