Implement renderer importance API for WebView

android_webview/native/BUILD.gn

Index: android_webview/native/BUILD.gn
diff --git a/android_webview/native/BUILD.gn b/android_webview/native/BUILD.gn
index 2b2d04e6e06d194fa489d1357dc0deeae7efda4e..4efadee5961db0a1854d1ce697ed55eb8a9c2c38 100644
--- a/android_webview/native/BUILD.gn
+++ b/android_webview/native/BUILD.gn
@@ -76,6 +76,8 @@ source_set("native") {
     "aw_picture.h",
     "aw_quota_manager_bridge_impl.cc",
     "aw_quota_manager_bridge_impl.h",
+    "aw_renderer_priority_manager.cc",
+    "aw_renderer_priority_manager.h",
     "aw_resource.cc",
     "aw_settings.cc",
     "aw_settings.h",
@@ -141,6 +143,7 @@ generate_jni("native_jni") {
     "../java/src/org/chromium/android_webview/AwPdfExporter.java",
     "../java/src/org/chromium/android_webview/AwPicture.java",
     "../java/src/org/chromium/android_webview/AwQuotaManagerBridge.java",
+    "../java/src/org/chromium/android_webview/AwRendererPriorityManager.java",
     "../java/src/org/chromium/android_webview/AwResource.java",
     "../java/src/org/chromium/android_webview/AwSettings.java",
     "../java/src/org/chromium/android_webview/AwTokenBindingManager.java",
@@ -168,3 +171,9 @@ java_cpp_enum("aw_permission_request_resource") {
     "permission/aw_permission_request.h",
   ]
 }
+
+java_cpp_enum("aw_renderer_priority_manager_renderer_priority") {
+  sources = [
+    "aw_renderer_priority_manager.h",
+  ]
+}