Implement hidpi and pinch-zoom scaling of filter params in cc.

cc/trees/quad_culler_unittest.cc

Index: cc/trees/quad_culler_unittest.cc
diff --git a/cc/trees/quad_culler_unittest.cc b/cc/trees/quad_culler_unittest.cc
index c7169558b48c4210973904027fa91c6b267ff8ad..99cfe30d6c7909f59ddde85f76214664411e3d02 100644
--- a/cc/trees/quad_culler_unittest.cc
+++ b/cc/trees/quad_culler_unittest.cc
@@ -815,6 +815,7 @@ TEST_F(QuadCullerTest, PartialCullingNotDestroyed) {
                     gfx::Rect(),
                     gfx::RectF(),
                     FilterOperations(),
+                    gfx::Vector2dF(),
                     FilterOperations());
 
   scoped_ptr<RenderPassDrawQuad> replica_quad = RenderPassDrawQuad::Create();
@@ -827,6 +828,7 @@ TEST_F(QuadCullerTest, PartialCullingNotDestroyed) {
                        gfx::Rect(),
                        gfx::RectF(),
                        FilterOperations(),
+                       gfx::Vector2dF(),
                        FilterOperations());
 
   // Set a visible rect on the quads.
@@ -894,6 +896,7 @@ TEST_F(QuadCullerTest, PartialCullingWithOcclusionNotDestroyed) {
                     gfx::Rect(),
                     gfx::RectF(),
                     FilterOperations(),
+                    gfx::Vector2dF(),
                     FilterOperations());
 
   scoped_ptr<RenderPassDrawQuad> replica_quad = RenderPassDrawQuad::Create();
@@ -906,6 +909,7 @@ TEST_F(QuadCullerTest, PartialCullingWithOcclusionNotDestroyed) {
                        gfx::Rect(),
                        gfx::RectF(),
                        FilterOperations(),
+                       gfx::Vector2dF(),
                        FilterOperations());
 
   // Set a visible rect on the quads.