Implement renderer importance API for WebView

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 1bb644606bd6368e7cd07ca18ceb87cd4a2c781d..69e3577fcd3cb61fffa7133de12e680f0687feb2 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -270,6 +270,10 @@ const char kDisableRendererAccessibility[]  = "disable-renderer-accessibility";
 // Prevent renderer process backgrounding when set.
 const char kDisableRendererBackgrounding[]  = "disable-renderer-backgrounding";
 
+// No not manage renderer process priority at all when set.
+const char kDisableRendererPriorityManagement[] =
+    "disable-renderer-priority-management";
+
 // Whether the resize lock is disabled. Default is false. This is generally only
 // useful for tests that want to force disabling.
 const char kDisableResizeLock[] = "disable-resize-lock";