Add a flag to not start GPU process on browser startup

content/browser/android/browser_startup_controller.cc

Index: content/browser/android/browser_startup_controller.cc
diff --git a/content/browser/android/browser_startup_controller.cc b/content/browser/android/browser_startup_controller.cc
index 124b519046f1f9a2416f10fa95a2742a80fcd033..69cecfd55794c16302d5c2a8b1cab9e6b4f3a60e 100644
--- a/content/browser/android/browser_startup_controller.cc
+++ b/content/browser/android/browser_startup_controller.cc
@@ -22,6 +22,11 @@ void BrowserStartupComplete(int result) {
   Java_BrowserStartupController_browserStartupComplete(env, result);
 }
 
+bool StartGpuProcessOnBrowserStartup() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  return Java_BrowserStartupController_startGpuProcessOnBrowserStartup(env);
+}
+
 bool RegisterBrowserStartupController(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }