Remove scroll_delta flooring hack

cc/trees/layer_tree_host_unittest_scroll.cc

Index: cc/trees/layer_tree_host_unittest_scroll.cc
diff --git a/cc/trees/layer_tree_host_unittest_scroll.cc b/cc/trees/layer_tree_host_unittest_scroll.cc
index 1c20b4cff22708655ec66b5f9ad62b76bd42a9a4..7f94244e57e4a408a54526ab59f2d5a6bb0f4fd8 100644
--- a/cc/trees/layer_tree_host_unittest_scroll.cc
+++ b/cc/trees/layer_tree_host_unittest_scroll.cc
@@ -429,19 +429,14 @@ class LayerTreeHostScrollTestFractionalScroll : public LayerTreeHostScrollTest {
         PostSetNeedsCommitToMainThread();
         break;
       case 1:
-        EXPECT_VECTOR_EQ(scroll_layer->BaseScrollOffset(),
-                         gfx::ToFlooredVector2d(scroll_amount_));
-        EXPECT_VECTOR_EQ(scroll_layer->ScrollDelta(),
-                         gfx::Vector2dF(fmod(scroll_amount_.x(), 1.0f), 0.0f));
+        EXPECT_VECTOR_EQ(scroll_layer->BaseScrollOffset(), scroll_amount_);
+        EXPECT_VECTOR_EQ(scroll_layer->ScrollDelta(), gfx::Vector2dF());
         PostSetNeedsCommitToMainThread();
         break;
       case 2:
-        EXPECT_VECTOR_EQ(
-            scroll_layer->BaseScrollOffset(),
-            gfx::ToFlooredVector2d(scroll_amount_ + scroll_amount_));
-        EXPECT_VECTOR_EQ(
-            scroll_layer->ScrollDelta(),
-            gfx::Vector2dF(fmod(2.0f * scroll_amount_.x(), 1.0f), 0.0f));
+        EXPECT_VECTOR_EQ(scroll_layer->BaseScrollOffset(),
+                         (scroll_amount_ + scroll_amount_));
+        EXPECT_VECTOR_EQ(scroll_layer->ScrollDelta(), gfx::Vector2dF());
         EndTest();
         break;
     }