chromium/chromium-68.0.3440.84-libwebp-shim.patch

diff --git a/build/linux/unbundle/libwebp.gn b/build/linux/unbundle/libwebp.gn
index ab92adecf400..12574d87be58 100644
--- a/build/linux/unbundle/libwebp.gn
+++ b/build/linux/unbundle/libwebp.gn
@@ -2,12 +2,34 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/config/linux/pkg_config.gni")
+import("//build/shim_headers.gni")
+
+pkg_config("system_libwebp") {
+  packages = [
+    "libwebp",
+    "libwebpdemux",
+    "libwebpmux",
+  ]
+}
+
+shim_headers("libwebp_shim") {
+  root_path = "src"
+  headers = [
+    "webp/decode.h",
+    "webp/demux.h",
+    "webp/encode.h",
+    "webp/mux.h",
+    "webp/mux_types.h",
+    "webp/types.h",
+  ]
+}
+
 source_set("libwebp_webp") {
-  libs = [
-    "webp",
-    "webpdemux",
-    "webpmux",
+  deps = [
+    ":libwebp_shim",
   ]
+  public_configs = [ ":system_libwebp" ]
 }
 
 group("libwebp") {