cc: Make scheduling be driven by vsync for android webview.

cc/scheduler/scheduler_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.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 125 matching lines @@
   void ScheduledActionCommit() override { PushAction("ScheduledActionCommit"); }
   void ScheduledActionActivateSyncTree() override {
     PushAction("ScheduledActionActivateSyncTree");
   }
   void ScheduledActionBeginOutputSurfaceCreation() override {
     PushAction("ScheduledActionBeginOutputSurfaceCreation");
   }
   void ScheduledActionPrepareTiles() override {
     PushAction("ScheduledActionPrepareTiles");
   }
+  void ScheduledActionInvalidateOutputSurface() override {
+    actions_.push_back("ScheduledActionInvalidateOutputSurface");
+    states_.push_back(scheduler_->AsValue());
+  }
   void DidAnticipatedDrawTimeChange(base::TimeTicks) override {
     if (log_anticipated_draw_time_change_)
       PushAction("DidAnticipatedDrawTimeChange");
   }
   base::TimeDelta DrawDurationEstimate() override { return base::TimeDelta(); }
   base::TimeDelta BeginMainFrameToCommitDurationEstimate() override {
     return base::TimeDelta();
   }
   base::TimeDelta CommitToActivateDurationEstimate() override {
     return base::TimeDelta();
@@ skipping 2184 matching lines @@
   EXPECT_SCOPED(AdvanceFrame());
   EXPECT_ACTION("WillBeginImplFrame", client_, 0, 2);
   EXPECT_ACTION("ScheduledActionAnimate", client_, 1, 2);
   EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client_->needs_begin_frames());
   client_->Reset();
   task_runner().RunPendingTasks();  // Run posted deadline.
   EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client_, 0, 1);
 }
 
+TEST(SchedulerTest, UsingSynchronousCompositor) {
+  FakeSchedulerClient client;
+  SchedulerSettings settings;
+  settings.using_synchronous_renderer_compositor = true;
+  settings.use_external_begin_frame_source = true;
+  settings.impl_side_painting = true;
+
+  TestScheduler* scheduler = client.CreateScheduler(settings);
+
+  scheduler->SetCanStart();
+  scheduler->SetVisible(true);
+  scheduler->SetCanDraw(true);
+
+  EXPECT_SINGLE_ACTION("ScheduledActionBeginOutputSurfaceCreation", client);
+  client.Reset();
+
+  scheduler->DidCreateAndInitializeOutputSurface();
+  scheduler->SetNeedsCommit();
+
+  EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client);
+  client.Reset();
+
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(BEGINFRAME_FROM_HERE, client.now_src()->Now(),
+                             base::TimeTicks(),
+                             BeginFrameArgs::DefaultInterval(),
+                             BeginFrameArgs::SYNCHRONOUS_ANIMATE));
+
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
+  EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client, 1, 2);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+
+  scheduler->NotifyBeginMainFrameStarted();
+  EXPECT_NO_ACTION(client);
+
+  scheduler->NotifyReadyToCommit();
+  EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
+  client.Reset();
+
+  scheduler->NotifyReadyToActivate();
+  EXPECT_SINGLE_ACTION("ScheduledActionActivateSyncTree", client);
+  client.Reset();
+
+  // Next VSync.
+  client.now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval());
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(BEGINFRAME_FROM_HERE, client.now_src()->Now(),
+                             base::TimeTicks(),
+                             BeginFrameArgs::DefaultInterval(),
+                             BeginFrameArgs::SYNCHRONOUS_ANIMATE));
+
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 3);
+  EXPECT_ACTION("ScheduledActionAnimate", client, 1, 3);
+  EXPECT_ACTION("ScheduledActionInvalidateOutputSurface", client, 2, 3);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+
+  // Android onDraw.
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(
+          BEGINFRAME_FROM_HERE, client.now_src()->Now(), base::TimeTicks(),
+          BeginFrameArgs::DefaultInterval(), BeginFrameArgs::SYNCHRONOUS_DRAW));
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 1, 2);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+
+  // Next VSync.
+  client.now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval());
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(BEGINFRAME_FROM_HERE, client.now_src()->Now(),
+                             base::TimeTicks(),
+                             BeginFrameArgs::DefaultInterval(),
+                             BeginFrameArgs::SYNCHRONOUS_ANIMATE));
+
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
+  EXPECT_ACTION("SetNeedsBeginFrames(false)", client, 1, 2);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+
+  // Steady-state.
+  // Static page. Scrolling initiated by webview.
+  scheduler->SetNeedsAnimate();
+  // Ask for BeginFrames.
+  EXPECT_SINGLE_ACTION("SetNeedsBeginFrames(true)", client);
+  client.Reset();
+
+  client.now_src()->AdvanceNow(BeginFrameArgs::DefaultInterval());
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(BEGINFRAME_FROM_HERE, client.now_src()->Now(),
+                             base::TimeTicks(),
+                             BeginFrameArgs::DefaultInterval(),
+                             BeginFrameArgs::SYNCHRONOUS_ANIMATE));
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 3);
+  EXPECT_ACTION("ScheduledActionAnimate", client, 1, 3);
+  EXPECT_ACTION("ScheduledActionInvalidateOutputSurface", client, 2, 3);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+
+  // Android onDraw.
+  client.fake_external_begin_frame_source()->TestOnBeginFrame(
+      BeginFrameArgs::Create(
+          BEGINFRAME_FROM_HERE, client.now_src()->Now(), base::TimeTicks(),
+          BeginFrameArgs::DefaultInterval(), BeginFrameArgs::SYNCHRONOUS_DRAW));
+  EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 1, 2);
+  EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
+  client.Reset();
+}
+
 }  // namespace
 }  // namespace cc