cc: Use SkMScalar instead of doubles everywhere in cc

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 5ad32c5163157c2951b110a0185f294075b3fad2..deaab0985ebf145fa6369d024a0d8aaa0a3f8159 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -2223,7 +2223,7 @@ TEST_F(LayerTreeHostImplTest, ScrollNonAxisAlignedRotatedLayer) {
     // Scroll down in screen coordinates with a gesture.
     gfx::Vector2d gesture_scroll_delta(0, 10);
     EXPECT_EQ(InputHandler::ScrollStarted,
-              host_impl_->ScrollBegin(gfx::Point(),
+              host_impl_->ScrollBegin(gfx::Point(1, 1),
                                       InputHandler::Gesture));
     host_impl_->ScrollBy(gfx::Point(), gesture_scroll_delta);
     host_impl_->ScrollEnd();
@@ -2248,7 +2248,7 @@ TEST_F(LayerTreeHostImplTest, ScrollNonAxisAlignedRotatedLayer) {
         gfx::Vector2dF());
     gfx::Vector2d gesture_scroll_delta(10, 0);
     EXPECT_EQ(InputHandler::ScrollStarted,
-              host_impl_->ScrollBegin(gfx::Point(),
+              host_impl_->ScrollBegin(gfx::Point(1, 1),
                                       InputHandler::Gesture));
     host_impl_->ScrollBy(gfx::Point(), gesture_scroll_delta);
     host_impl_->ScrollEnd();