Remove scroll_delta flooring hack

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index cb33686994eb0189f68ae46929aee297b4113d44..8270943edc5394a865847d4c9212ef25907f3d77 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -197,13 +197,14 @@ class LayerTreeHostImplTest : public testing::Test,
 
   static void ExpectContains(const ScrollAndScaleSet& scroll_info,
                              int id,
-                             const gfx::Vector2d& scroll_delta) {
+                             const gfx::Vector2dF& scroll_delta) {
     int times_encountered = 0;
 
     for (size_t i = 0; i < scroll_info.scrolls.size(); ++i) {
       if (scroll_info.scrolls[i].layer_id != id)
         continue;
-      EXPECT_VECTOR_EQ(scroll_delta, scroll_info.scrolls[i].scroll_delta);
+      EXPECT_VECTOR2DF_NEAR(scroll_delta, scroll_info.scrolls[i].scroll_delta,
+                            1.0e-10);
       times_encountered++;
     }
 
@@ -3548,9 +3549,8 @@ TEST_F(LayerTreeHostImplTest, ScrollAxisAlignedRotatedLayer) {
 
   // The layer should have scrolled down in its local coordinates.
   scoped_ptr<ScrollAndScaleSet> scroll_info = host_impl_->ProcessScrollDeltas();
-  ExpectContains(*scroll_info.get(),
-                 scroll_layer->id(),
-                 gfx::Vector2d(0, gesture_scroll_delta.x()));
+  ExpectContains(*scroll_info.get(), scroll_layer->id(),
+                 gfx::Vector2dF(0, gesture_scroll_delta.x()));
 
   // Reset and scroll down with the wheel.
   scroll_layer->SetScrollDelta(gfx::Vector2dF());
@@ -3611,10 +3611,9 @@ TEST_F(LayerTreeHostImplTest, ScrollNonAxisAlignedRotatedLayer) {
 
     // The child layer should have scrolled down in its local coordinates an
     // amount proportional to the angle between it and the input scroll delta.
-    gfx::Vector2d expected_scroll_delta(
-        0,
-        gesture_scroll_delta.y() *
-            std::cos(MathUtil::Deg2Rad(child_layer_angle)));
+    gfx::Vector2dF expected_scroll_delta(
+        0, gesture_scroll_delta.y() *
+               std::cos(MathUtil::Deg2Rad(child_layer_angle)));
     scoped_ptr<ScrollAndScaleSet> scroll_info =
         host_impl_->ProcessScrollDeltas();
     ExpectContains(*scroll_info.get(), child_layer_id, expected_scroll_delta);
@@ -3635,17 +3634,16 @@ TEST_F(LayerTreeHostImplTest, ScrollNonAxisAlignedRotatedLayer) {
 
     // The child layer should have scrolled down in its local coordinates an
     // amount proportional to the angle between it and the input scroll delta.
-    gfx::Vector2d expected_scroll_delta(
-        0,
-        -gesture_scroll_delta.x() *
-            std::sin(MathUtil::Deg2Rad(child_layer_angle)));
+    gfx::Vector2dF expected_scroll_delta(
+        0, -gesture_scroll_delta.x() *
+               std::sin(MathUtil::Deg2Rad(child_layer_angle)));
     scoped_ptr<ScrollAndScaleSet> scroll_info =
         host_impl_->ProcessScrollDeltas();
     ExpectContains(*scroll_info.get(), child_layer_id, expected_scroll_delta);
 
     // The root scroll layer should have scrolled more, since the input scroll
     // delta was mostly orthogonal to the child layer's vertical scroll axis.
-    gfx::Vector2d expected_root_scroll_delta(
+    gfx::Vector2dF expected_root_scroll_delta(
         gesture_scroll_delta.x() *
             std::pow(std::cos(MathUtil::Deg2Rad(child_layer_angle)), 2),
         0);