1 files changed, 33 insertions, 1 deletions
diff --git a/chromium/third_party/opus/BUILD.gn b/chromium/third_party/opus/BUILD.gn
index 2394f5cd469..c266a4aa36b 100644
--- a/chromium/third_party/opus/BUILD.gn
+++ b/chromium/third_party/opus/BUILD.gn
@@ -3,8 +3,14 @@
 # found in the LICENSE file.
 
 import("//build/config/arm.gni")
+import("//build/config/linux/pkg_config.gni")
+import("//build/shim_headers.gni")
 import("//testing/test.gni")
 
+declare_args() {
+  use_system_opus = false
+}
+
 # If fixed point implementation shall be used (otherwise float).
 use_opus_fixed_point = current_cpu == "arm" || current_cpu == "arm64"
 
@@ -207,7 +213,7 @@ if (use_opus_x86_optimization) {
 
 # Note: Do not add any defines or include_dirs to this target, those should all
 # go in the opus_private_config so they can be shared with intrinsic targets.
-static_library("opus") {
+static_library("bundled_opus") {
   sources = [
     "src/celt/_kiss_fft_guts.h",
     "src/celt/arch.h",
@@ -627,3 +633,29 @@ if (is_android || is_linux || is_chromeos) {
     ]
   }
 }
+
+if (use_system_opus) {
+  pkg_config("system_opus") {
+    packages = [ "opus" ]
+  }
+}
+
+shim_headers("opus_shim") {
+  root_path = "src/include"
+  headers = [
+    "opus.h",
+    "opus_custom.h",
+    "opus_defines.h",
+    "opus_multistream.h",
+    "opus_types.h",
+  ]
+}
+
+group("opus") {
+  if (use_system_opus) {
+    deps = [ ":opus_shim" ]
+    public_configs = [ ":system_opus" ]
+  } else {
+    public_deps = [ ":bundled_opus" ]
+  }
+}