Use ScrollOffset instead of vector2d to track scroll offset in cc

This is for preparing converting blink side scroll offset to be double
type. Assuming blink side starts to use double scroll offset, it can
be passed back from main/blink to compositor without converting to int
type.

BUG=414283

Review URL: https://codereview.chromium.org/584503005

Cr-Commit-Position: refs/heads/master@{#297692}

1 files changed, 2 insertions, 2 deletions

diff --git a/cc/test/animation_test_common.cc b/cc/test/animation_test_common.cc
index 953dac4..9966b34 100644
--- a/cc/test/animation_test_common.cc
+++ b/cc/test/animation_test_common.cc
@@ -216,7 +216,7 @@ void FakeLayerAnimationValueObserver::OnTransformAnimated(
 }
 
 void FakeLayerAnimationValueObserver::OnScrollOffsetAnimated(
-    const gfx::Vector2dF& scroll_offset) {
+    const gfx::ScrollOffset& scroll_offset) {
   scroll_offset_ = scroll_offset;
 }
 
@@ -232,7 +232,7 @@ bool FakeInactiveLayerAnimationValueObserver::IsActive() const {
   return false;
 }
 
-gfx::Vector2dF FakeLayerAnimationValueProvider::ScrollOffsetForAnimation()
+gfx::ScrollOffset FakeLayerAnimationValueProvider::ScrollOffsetForAnimation()
     const {
   return scroll_offset_;
 }