cc: Make --jank-instead-of-checkerboard jank more often

cc/scheduler_state_machine.cc

Index: cc/scheduler_state_machine.cc
diff --git a/cc/scheduler_state_machine.cc b/cc/scheduler_state_machine.cc
index 56fde75c936a9604856bd59d2d5f4d08b962459d..9eda03780ec752a7fc4c0b1ce37ea45d05fc8a81 100644
--- a/cc/scheduler_state_machine.cc
+++ b/cc/scheduler_state_machine.cc
@@ -8,6 +8,7 @@
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
+#include "cc/settings.h"
 
 namespace cc {
 
@@ -263,7 +264,7 @@ void SchedulerStateMachine::didDrawIfPossibleCompleted(bool success)
         m_needsRedraw = true;
         m_needsCommit = true;
         m_consecutiveFailedDraws++;
-        if (m_consecutiveFailedDraws >= m_maximumNumberOfFailedDrawsBeforeDrawIsForced) {
+        if (!Settings::jankInsteadOfCheckerboard() && m_consecutiveFailedDraws >= m_maximumNumberOfFailedDrawsBeforeDrawIsForced) {
             m_consecutiveFailedDraws = 0;
             // We need to force a draw, but it doesn't make sense to do this until
             // we've committed and have new textures.