aw: Disable blink scheduler on the Android WebView.

android_webview/lib/main/aw_main_delegate.cc

Index: android_webview/lib/main/aw_main_delegate.cc
diff --git a/android_webview/lib/main/aw_main_delegate.cc b/android_webview/lib/main/aw_main_delegate.cc
index 1bf3c5de24fa8ee4bb386bdee6e5d1ec73c67393..04c4a175a9110a5f4284ea18899b4a0e78451f7d 100644
--- a/android_webview/lib/main/aw_main_delegate.cc
+++ b/android_webview/lib/main/aw_main_delegate.cc
@@ -79,6 +79,9 @@ bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
   // This is needed for sharing textures across the different GL threads.
   cl->AppendSwitch(switches::kEnableThreadedTextureMailboxes);
 
+  // We need to support input event handling for the scheduler. crbug.com/431598
+  cl->AppendSwitch(switches::kDisableBlinkScheduler);
+
   return false;
 }