cc: Move scheduling logic out of OutputSurface

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"
 #include "base/memory/scoped_vector.h"
@@ skipping 243 matching lines @@
   EXPECT_SINGLE_ACTION("SetNeedsBeginFrame", client);
   client.Reset();
 
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
   EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client, 1, 2);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
-  // If we don't swap on the deadline, we need to request another
-  // BeginImplFrame.
+  // If we don't swap on the deadline, we wait for the next BeginFrame.
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_SINGLE_ACTION("SetNeedsBeginFrame", client);
+  EXPECT_EQ(0, client.num_actions_());
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // NotifyReadyToCommit should trigger the commit.
   scheduler->NotifyBeginMainFrameStarted();
   scheduler->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // BeginImplFrame should prepare the draw.
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // BeginImplFrame deadline should draw.
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
   // to avoid excessive toggles.
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
@@ skipping 34 matching lines @@
   EXPECT_EQ(client.num_actions_(), 0);
   client.Reset();
 
   // Finish the first commit.
   scheduler->NotifyBeginMainFrameStarted();
   scheduler->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
 
   // Because we just swapped, the Scheduler should also request the next
   // BeginImplFrame from the OutputSurface.
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
   // Since another commit is needed, the next BeginImplFrame should initiate
   // the second commit.
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
   EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client, 1, 2);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
 
   // Finishing the commit before the deadline should post a new deadline task
   // to trigger the deadline early.
   scheduler->NotifyBeginMainFrameStarted();
   scheduler->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // On the next BeginImplFrame, verify we go back to a quiescent state and
   // no longer request BeginImplFrames.
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   client.task_runner().RunPendingTasks();  // Run posted deadline.
   EXPECT_FALSE(client.needs_begin_impl_frame());
   client.Reset();
@@ skipping 398 matching lines @@
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
 
   // We need a BeginImplFrame where we don't swap to go idle.
   client.Reset();
   scheduler->BeginFrame(BeginFrameArgs::CreateForTesting());
   EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
   client.task_runner().RunPendingTasks();  // Run posted deadline.
   EXPECT_SINGLE_ACTION("SetNeedsBeginFrame", client);
+  EXPECT_FALSE(client.needs_begin_impl_frame());
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_EQ(0, client.num_draws());
 
   // Now trigger a ManageTiles outside of a draw. We will then need
   // a begin-frame for the ManageTiles, but we don't need a draw.
   client.Reset();
   EXPECT_FALSE(client.needs_begin_impl_frame());
   scheduler->SetNeedsManageTiles();
   EXPECT_TRUE(client.needs_begin_impl_frame());
   EXPECT_TRUE(scheduler->ManageTilesPending());
@@ skipping 344 matching lines @@
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // Queue BeginFrames while we are still handling the previous BeginFrame.
   args.frame_time += base::TimeDelta::FromSeconds(1);
   scheduler->BeginFrame(args);
   args.frame_time += base::TimeDelta::FromSeconds(1);
   scheduler->BeginFrame(args);
 
-  // If we don't swap on the deadline, we need to request another
-  // BeginImplFrame.
+  // If we don't swap on the deadline, we wait for the next BeginImplFrame.
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_SINGLE_ACTION("SetNeedsBeginFrame", client);
+  EXPECT_EQ(0, client.num_actions_());
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // NotifyReadyToCommit should trigger the commit.
   scheduler->NotifyBeginMainFrameStarted();
   scheduler->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // BeginImplFrame should prepare the draw.
   client.task_runner().RunPendingTasks();  // Run posted BeginRetroFrame.
   EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // BeginImplFrame deadline should draw.
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // The following BeginImplFrame deadline should SetNeedsBeginFrame(false)
   // to avoid excessive toggles.
   client.task_runner().RunPendingTasks();  // Run posted BeginRetroFrame.
   EXPECT_SINGLE_ACTION("WillBeginImplFrame", client);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.Reset();
@@ skipping 45 matching lines @@
 
   // NotifyReadyToCommit should trigger the pending commit and draw.
   scheduler->NotifyBeginMainFrameStarted();
   scheduler->NotifyReadyToCommit();
   EXPECT_SINGLE_ACTION("ScheduledActionCommit", client);
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // Swapping will put us into a swap throttled state.
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // While swap throttled, BeginRetroFrames should trigger BeginImplFrames
   // but not a BeginMainFrame or draw.
   scheduler->SetNeedsCommit();
   client.task_runner().RunPendingTasks();  // Run posted BeginRetroFrame.
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 1);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
@@ skipping 11 matching lines @@
   // Take us out of a swap throttled state.
   scheduler->DidSwapBuffersComplete();
   EXPECT_ACTION("ScheduledActionSendBeginMainFrame", client, 0, 1);
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 
   // BeginImplFrame deadline should draw.
   scheduler->SetNeedsRedraw();
   client.task_runner().RunPendingTasks();  // Run posted deadline.
-  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 2);
-  EXPECT_ACTION("SetNeedsBeginFrame", client, 1, 2);
+  EXPECT_ACTION("ScheduledActionDrawAndSwapIfPossible", client, 0, 1);
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
   EXPECT_TRUE(client.needs_begin_impl_frame());
   client.Reset();
 }
 
 }  // namespace
 }  // namespace cc