android webview: allow cc to fail hardware draw

cc/scheduler/scheduler_state_machine_unittest.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_state_machine.h"
 
 #include "base/trace_event/trace_event.h"
 #include "cc/scheduler/scheduler.h"
 #include "cc/test/begin_frame_args_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 1770 matching lines @@
 
   state.SetCanDraw(false);
   state.SetVisible(false);
   EXPECT_TRUE(state.PendingDrawsShouldBeAborted());
 
   state.SetCanDraw(true);
   state.SetVisible(true);
   EXPECT_FALSE(state.PendingDrawsShouldBeAborted());
 }
 
-TEST(SchedulerStateMachineTest, ForceDrawForSynchronousCompositor) {
+TEST(SchedulerStateMachineTest, ForceDrawForResourcelessSoftwareDraw) {
   SchedulerSettings scheduler_settings;
-  scheduler_settings.using_synchronous_renderer_compositor = true;
   StateMachine state(scheduler_settings);
+  state.SetResourcelessSoftareDraw(true);

[brianderson, 2015/10/21 22:43:04]

Since this is a dynamic setting now, can you update this test or the Scheduler
test to switch the mode on and off?

[boliu, 2015/10/21 23:04:44]

Done.

   SET_UP_STATE(state)
   EXPECT_FALSE(state.PendingDrawsShouldBeAborted());
 
   state.SetVisible(false);
   state.DidLoseOutputSurface();
 
   state.SetCanDraw(false);
   state.WillBeginOutputSurfaceCreation();
   state.DidCreateAndInitializeOutputSurface();
   EXPECT_TRUE(state.PendingDrawsShouldBeAborted());
@@ skipping 290 matching lines @@
   EXPECT_FALSE(state.ProactiveBeginFrameWanted());
   bool commit_has_no_updates = true;
   state.WillCommit(commit_has_no_updates);
   EXPECT_TRUE(state.ProactiveBeginFrameWanted());
   state.OnBeginImplFrame();
   EXPECT_FALSE(state.ProactiveBeginFrameWanted());
 }
 
 }  // namespace
 }  // namespace cc