android webview: allow cc to fail hardware draw

cc/scheduler/scheduler.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/scheduler/scheduler.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
@@ skipping 119 matching lines @@
   DCHECK_GE(draw_time.ToInternalValue(), 0);
   estimated_parent_draw_time_ = draw_time;
 }
 
 void Scheduler::SetVisible(bool visible) {
   state_machine_.SetVisible(visible);
   UpdateCompositorTimingHistoryRecordingEnabled();
   ProcessScheduledActions();
 }
 
+void Scheduler::SetResourcelessSoftareDraw(bool resourceless_draw) {
+  state_machine_.SetResourcelessSoftareDraw(resourceless_draw);
+  ProcessScheduledActions();
+}
+
 void Scheduler::SetCanDraw(bool can_draw) {
   state_machine_.SetCanDraw(can_draw);
   ProcessScheduledActions();
 }
 
 void Scheduler::NotifyReadyToActivate() {
   compositor_timing_history_->ReadyToActivate();
   state_machine_.NotifyReadyToActivate();
   ProcessScheduledActions();
 }
@@ skipping 677 matching lines @@
 }
 
 bool Scheduler::IsBeginMainFrameSentOrStarted() const {
   return (state_machine_.begin_main_frame_state() ==
               SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_SENT ||
           state_machine_.begin_main_frame_state() ==
               SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_STARTED);
 }
 
 }  // namespace cc