Remove unused PrimitiveInfoTiler.

webrender/src/display_list_flattener.rs

@@ -2107,72 +2107,6 @@ pub fn build_scene(config: &FrameBuilderConfig, request: SceneRequest) -> BuiltS
     }
 }
 
-trait PrimitiveInfoTiler {
-    fn decompose(
-        &self,
-        tile_size: LayoutSize,
-        tile_spacing: LayoutSize,
-        max_prims: usize,
-    ) -> Vec<LayoutPrimitiveInfo>;
-}
-
-impl PrimitiveInfoTiler for LayoutPrimitiveInfo {
-    fn decompose(
-        &self,
-        tile_size: LayoutSize,
-        tile_spacing: LayoutSize,
-        max_prims: usize,
-    ) -> Vec<LayoutPrimitiveInfo> {
-        let mut prims = Vec::new();
-        let tile_repeat = tile_size + tile_spacing;
-
-        if tile_repeat.width <= 0.0 ||
-           tile_repeat.height <= 0.0 {
-            return prims;
-        }
-
-        if tile_repeat.width < self.rect.size.width ||
-           tile_repeat.height < self.rect.size.height {
-            let clip_rect = self.clip_rect
-                .intersection(&self.rect)
-                .unwrap_or_else(LayoutRect::zero);
-            let rect_p0 = self.rect.origin;
-            let rect_p1 = self.rect.bottom_right();
-
-            let mut y0 = rect_p0.y;
-            while y0 < rect_p1.y {
-                let mut x0 = rect_p0.x;
-
-                while x0 < rect_p1.x {
-                    prims.push(LayoutPrimitiveInfo {
-                        rect: LayoutRect::new(
-                            LayoutPoint::new(x0, y0),
-                            tile_size,
-                        ),
-                        clip_rect,
-                        is_backface_visible: self.is_backface_visible,
-                        tag: self.tag,
-                    });
-
-                    // Mostly a safety against a crazy number of primitives
-                    // being generated. If we exceed that amount, just bail
-                    // out and only draw the maximum amount.
-                    if prims.len() > max_prims {
-                        warn!("too many prims found due to repeat/tile. dropping extra prims!");
-                        return prims;
-                    }
-
-                    x0 += tile_repeat.width;
-                }
-
-                y0 += tile_repeat.height;
-            }
-        }
-
-        prims
-    }
-}
-
 /// Properties of a stacking context that are maintained
 /// during creation of the scene. These structures are
 /// not persisted after the initial scene build.