Add Vaapi support on Ozone/Freon

content/common/BUILD.gn

Index: content/common/BUILD.gn
diff --git a/content/common/BUILD.gn b/content/common/BUILD.gn
index 8cec06a92fa544b10714aa124caea78d4dead017..2ce16acc74950cb1e1743d9a3f3a1c5f2b8647b4 100644
--- a/content/common/BUILD.gn
+++ b/content/common/BUILD.gn
@@ -21,6 +21,9 @@ if (is_chromeos && cpu_arch != "arm") {
     if (use_x11) {
       sources += [ "gpu/media/va_x11.sigs" ]
     }
+    if (use_ozone) {
+      sources += [ "gpu/media/va_drm.sigs" ]
+    }
     stubs_filename_root = "va_stubs"
 
     outputs = [
@@ -329,6 +332,12 @@ source_set("common") {
           "gpu/media/vaapi_tfp_picture.h",
         ]
       }
+      if (use_ozone) {
+        sources += [
+          "gpu/media/vaapi_drm_picture.cc",
+          "gpu/media/vaapi_drm_picture.h",
+        ]
+      }
     }
   }