Update webrender, image, png and raqote

This will avoid duping png because of the raqote backend

components/compositing/Cargo.toml

@@ -21,7 +21,7 @@ embedder_traits = {path = "../embedder_traits"}
 euclid = "0.20"
 gfx_traits = {path = "../gfx_traits"}
 gleam = {version = "0.6", optional = true}
-image = "0.21"
+image = "0.22"
 ipc-channel = "0.11"
 libc = "0.2"
 keyboard-types = "0.4.3"

components/layout/display_list/webrender_helpers.rs

@@ -230,6 +230,7 @@ impl WebRenderDisplayItemConverter for DisplayItem {
                         raster_space: RasterSpace::Screen,
                         // TODO(pcwalton): Enable picture caching?
                         cache_tiles: false,
+                        is_backdrop_root: false,
                     },
                 };
 

components/net_traits/Cargo.toml

@@ -20,7 +20,7 @@ headers = "0.2"
 http = "0.1"
 hyper = "0.12"
 hyper_serde = "0.11"
-piston_image = {package = "image", version = "0.21"}
+piston_image = {package = "image", version = "0.22"}
 ipc-channel = "0.11"
 lazy_static = "1"
 log = "0.4"

components/script/Cargo.toml

@@ -58,7 +58,7 @@ html5ever = "0.23"
 http = "0.1"
 hyper = "0.12"
 hyper_serde = "0.11"
-image = "0.21"
+image = "0.22"
 indexmap = "1.0.2"
 ipc-channel = "0.11"
 itertools = "0.8"

components/webdriver_server/Cargo.toml

@@ -16,7 +16,7 @@ cookie = "0.11"
 crossbeam-channel = "0.3"
 euclid = "0.20"
 hyper = "0.12"
-image = "0.21"
+image = "0.22"
 ipc-channel = "0.11"
 keyboard-types = "0.4.3"
 log = "0.4"