cc: Rename SwapBuffers on CompositorFrameSink to SubmitCompositorFrame

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 <stddef.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"
 
 // Macro to compare two enum values and get nice output.
 // Without:
 //   Value of: actual()      Actual: 7
 //   Expected: expected()  Which is: 0
 // With:
-//   Value of: actual()      Actual: "ACTION_DRAW_AND_SWAP"
+//   Value of: actual()      Actual: "ACTION_DRAW"
 //   Expected: expected()  Which is: "ACTION_NONE"
 #define EXPECT_ENUM_EQ(enum_tostring, expected, actual)        \
   EXPECT_STREQ(SchedulerStateMachine::enum_tostring(expected), \
                SchedulerStateMachine::enum_tostring(actual))
 
 #define EXPECT_IMPL_FRAME_STATE(expected)               \
   EXPECT_ENUM_EQ(BeginImplFrameStateToString, expected, \
                  state.begin_impl_frame_state())        \
       << state.AsValue()->ToString()
 
 #define EXPECT_MAIN_FRAME_STATE(expected)               \
   EXPECT_ENUM_EQ(BeginMainFrameStateToString, expected, \
                  state.BeginMainFrameState())
 
 #define EXPECT_ACTION(expected)                                \
   EXPECT_ENUM_EQ(ActionToString, expected, state.NextAction()) \
       << state.AsValue()->ToString()
 
-#define EXPECT_ACTION_UPDATE_STATE(action)                                 \
-  EXPECT_ACTION(action);                                                   \
-  if (action == SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE || \
-      action == SchedulerStateMachine::ACTION_DRAW_AND_SWAP_FORCED) {      \
-    EXPECT_IMPL_FRAME_STATE(                                               \
-        SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE);    \
-  }                                                                        \
-  PerformAction(&state, action);                                           \
-  if (action == SchedulerStateMachine::ACTION_NONE) {                      \
-    if (state.begin_impl_frame_state() ==                                  \
-        SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE)     \
-      state.OnBeginImplFrameIdle();                                        \
+#define EXPECT_ACTION_UPDATE_STATE(action)                              \
+  EXPECT_ACTION(action);                                                \
+  if (action == SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE ||       \
+      action == SchedulerStateMachine::ACTION_DRAW_FORCED) {            \
+    EXPECT_IMPL_FRAME_STATE(                                            \
+        SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE); \
+  }                                                                     \
+  PerformAction(&state, action);                                        \
+  if (action == SchedulerStateMachine::ACTION_NONE) {                   \
+    if (state.begin_impl_frame_state() ==                               \
+        SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE)  \
+      state.OnBeginImplFrameIdle();                                     \
   }
 
 #define SET_UP_STATE(state)                                                \
   state.SetVisible(true);                                                  \
   EXPECT_ACTION_UPDATE_STATE(                                              \
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION); \
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);          \
   state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();       \
   state.SetCanDraw(true);
 
@@ skipping 110 matching lines @@
     case SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME:
       sm->WillSendBeginMainFrame();
       return;
 
     case SchedulerStateMachine::ACTION_COMMIT: {
       bool commit_has_no_updates = false;
       sm->WillCommit(commit_has_no_updates);
       return;
     }
 
-    case SchedulerStateMachine::ACTION_DRAW_AND_SWAP_FORCED:
-    case SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE: {
+    case SchedulerStateMachine::ACTION_DRAW_FORCED:
+    case SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE: {
       sm->WillDraw();
       sm->DidDraw(sm->draw_result_for_test());
       return;
     }
 
-    case SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT: {
-      sm->AbortDrawAndSwap();
+    case SchedulerStateMachine::ACTION_DRAW_ABORT: {
+      sm->AbortDraw();
       return;
     }
 
     case SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION:
       sm->WillBeginCompositorFrameSinkCreation();
       return;
 
     case SchedulerStateMachine::ACTION_PREPARE_TILES:
       sm->WillPrepareTiles();
       return;
@@ skipping 197 matching lines @@
 
   // Verify NotifyReadyToActivate unblocks activation, commit, and
   // draw in that order.
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   EXPECT_TRUE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_MAIN_FRAME_STATE(SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_IDLE);
 }
 
 TEST(SchedulerStateMachineTest,
      FailedDrawForAnimationCheckerboardSetsNeedsCommitAndRetriesDraw) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
   state.SetNeedsRedraw(true);
   EXPECT_TRUE(state.RedrawPending());
   EXPECT_TRUE(state.BeginFrameNeeded());
 
   // Start a frame.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_FALSE(state.CommitPending());
 
   // Failing a draw triggers request for a new BeginMainFrame.
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameIdle();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // It's okay to attempt more draws just in case additional raster
   // finishes and the requested commit wasn't actually necessary.
   EXPECT_TRUE(state.CommitPending());
   EXPECT_TRUE(state.RedrawPending());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameIdle();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, FailedDrawForMissingHighResNeedsCommit) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
   state.SetNeedsRedraw(true);
   EXPECT_TRUE(state.RedrawPending());
   EXPECT_TRUE(state.BeginFrameNeeded());
 
   // Start a frame.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_FALSE(state.CommitPending());
 
   // Failing a draw triggers because of high res tiles missing
   // request for a new BeginMainFrame.
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_ABORTED_MISSING_HIGH_RES_CONTENT);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameIdle();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // It doesn't request a draw until we get a new commit though.
   EXPECT_TRUE(state.CommitPending());
   EXPECT_FALSE(state.RedrawPending());
   state.OnBeginImplFrame();
@@ skipping 11 matching lines @@
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.RedrawPending());
 
   // Verify we draw with the new frame.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_SUCCESS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameIdle();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest,
      TestFailedDrawsEventuallyForceDrawAfterNextCommit) {
   SchedulerSettings scheduler_settings;
   scheduler_settings.maximum_number_of_failed_draws_before_draw_is_forced = 1;
   StateMachine state(scheduler_settings);
   SET_UP_STATE(state)
 
   // Start a commit.
   state.SetNeedsBeginMainFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.CommitPending());
 
   // Then initiate a draw that fails.
   state.SetNeedsRedraw(true);
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.BeginFrameNeeded());
   EXPECT_TRUE(state.RedrawPending());
   EXPECT_TRUE(state.CommitPending());
 
   // Finish the commit. Note, we should not yet be forcing a draw, but should
   // continue the commit as usual.
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.RedrawPending());
 
   // Activate so we're ready for a new main frame.
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.RedrawPending());
 
   // The redraw should be forced at the end of the next BeginImplFrame.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_SUCCESS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_FORCED);
-  state.DidSwapBuffers();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_FORCED);
+  state.DidSubmitCompositorFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
-  state.DidSwapBuffersComplete();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestFailedDrawsDoNotRestartForcedDraw) {
   SchedulerSettings scheduler_settings;
   int draw_limit = 2;
   scheduler_settings.maximum_number_of_failed_draws_before_draw_is_forced =
       draw_limit;
   StateMachine state(scheduler_settings);
   SET_UP_STATE(state)
 
   // Start a commit.
   state.SetNeedsBeginMainFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.CommitPending());
 
   // Then initiate a draw.
   state.SetNeedsRedraw(true);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
 
   // Fail the draw enough times to force a redraw.
   for (int i = 0; i < draw_limit; ++i) {
     state.SetNeedsRedraw(true);
     state.OnBeginImplFrame();
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
     state.OnBeginImplFrameDeadline();
     state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-    EXPECT_ACTION_UPDATE_STATE(
-        SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+    EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
     state.OnBeginImplFrameIdle();
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   }
 
   EXPECT_TRUE(state.BeginFrameNeeded());
   EXPECT_TRUE(state.RedrawPending());
   // But the commit is ongoing.
   EXPECT_TRUE(state.CommitPending());
   EXPECT_TRUE(state.ForcedRedrawState() ==
               SchedulerStateMachine::FORCED_REDRAW_STATE_WAITING_FOR_COMMIT);
 
   // After failing additional draws, we should still be in a forced
   // redraw, but not back in IDLE.
   for (int i = 0; i < draw_limit; ++i) {
     state.SetNeedsRedraw(true);
     state.OnBeginImplFrame();
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
     state.OnBeginImplFrameDeadline();
     state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-    EXPECT_ACTION_UPDATE_STATE(
-        SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+    EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
     state.OnBeginImplFrameIdle();
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   }
   EXPECT_TRUE(state.RedrawPending());
   EXPECT_TRUE(state.ForcedRedrawState() ==
               SchedulerStateMachine::FORCED_REDRAW_STATE_WAITING_FOR_COMMIT);
 }
 
 TEST(SchedulerStateMachineTest, TestFailedDrawIsRetriedInNextBeginImplFrame) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
 
   // Start a draw.
   state.SetNeedsRedraw(true);
   EXPECT_TRUE(state.BeginFrameNeeded());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
   EXPECT_TRUE(state.RedrawPending());
   state.SetDrawResultForTest(DRAW_ABORTED_CHECKERBOARD_ANIMATIONS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
 
   // Failing the draw for animation checkerboards makes us require a commit.
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.RedrawPending());
 
   // We should not be trying to draw again now, but we have a commit pending.
   EXPECT_TRUE(state.BeginFrameNeeded());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // We should try to draw again at the end of the next BeginImplFrame on
   // the impl thread.
   state.OnBeginImplFrameDeadline();
   state.SetDrawResultForTest(DRAW_SUCCESS);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestDoestDrawTwiceInSameFrame) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
   state.SetNeedsRedraw(true);
 
   // Draw the first frame.
   EXPECT_TRUE(state.BeginFrameNeeded());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Before the next BeginImplFrame, set needs redraw again.
   // This should not redraw until the next BeginImplFrame.
   state.SetNeedsRedraw(true);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Move to another frame. This should now draw.
   EXPECT_TRUE(state.BeginFrameNeeded());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
-  // We just swapped, so we should proactively request another BeginImplFrame.
+  // We just submitted, so we should proactively request another BeginImplFrame.
   EXPECT_TRUE(state.BeginFrameNeeded());
 }
 
 TEST(SchedulerStateMachineTest, TestNextActionDrawsOnBeginImplFrame) {
   SchedulerSettings default_scheduler_settings;
 
   // When not in BeginImplFrame deadline, or in BeginImplFrame deadline
   // but not visible, don't draw.
   size_t num_begin_main_frame_states =
       sizeof(begin_main_frame_states) /
@@ skipping 10 matching lines @@
       EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
       state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
       state.SetBeginMainFrameState(begin_main_frame_states[i]);
       state.SetBeginImplFrameState(all_begin_impl_frame_states[j]);
       bool visible =
           (all_begin_impl_frame_states[j] !=
            SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE);
       state.SetVisible(visible);
 
       // Case 1: needs_begin_main_frame=false
-      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE,
+      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE,
                 state.NextAction());
 
       // Case 2: needs_begin_main_frame=true
       state.SetNeedsBeginMainFrame();
-      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE,
+      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE,
                 state.NextAction())
           << state.AsValue()->ToString();
     }
   }
 
   // When in BeginImplFrame deadline we should always draw for SetNeedsRedraw
   // except if we're ready to commit, in which case we expect a commit first.
   for (size_t i = 0; i < num_begin_main_frame_states; ++i) {
     StateMachine state(default_scheduler_settings);
     state.SetVisible(true);
     EXPECT_ACTION_UPDATE_STATE(
         SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
     EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
     state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
     state.SetCanDraw(true);
     state.SetBeginMainFrameState(begin_main_frame_states[i]);
     state.SetBeginImplFrameState(
         SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE);
 
     state.SetNeedsRedraw(true);
 
     SchedulerStateMachine::Action expected_action;
     if (begin_main_frame_states[i] ==
         SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_READY_TO_COMMIT) {
       expected_action = SchedulerStateMachine::ACTION_COMMIT;
     } else {
-      expected_action = SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE;
+      expected_action = SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE;
     }
 
     // Case 1: needs_begin_main_frame=false.
     EXPECT_ACTION(expected_action);
 
     // Case 2: needs_begin_main_frame=true.
     state.SetNeedsBeginMainFrame();
     EXPECT_ACTION(expected_action);
   }
 }
@@ skipping 15 matching lines @@
       state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
       state.SetBeginMainFrameState(begin_main_frame_states[i]);
       state.SetVisible(false);
       state.SetNeedsRedraw(true);
       if (j == 1) {
         state.SetBeginImplFrameState(
             SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE);
       }
 
       // Case 1: needs_begin_main_frame=false.
-      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE,
+      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE,
                 state.NextAction());
 
       // Case 2: needs_begin_main_frame=true.
       state.SetNeedsBeginMainFrame();
-      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE,
+      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE,
                 state.NextAction())
           << state.AsValue()->ToString();
     }
   }
 }
 
 TEST(SchedulerStateMachineTest, TestCanRedraw_StopsDraw) {
   SchedulerSettings default_scheduler_settings;
 
   size_t num_begin_main_frame_states =
       sizeof(begin_main_frame_states) /
       sizeof(SchedulerStateMachine::BeginMainFrameState);
   for (size_t i = 0; i < num_begin_main_frame_states; ++i) {
     // There shouldn't be any drawing regardless of BeginImplFrame.
     for (size_t j = 0; j < 2; ++j) {
       StateMachine state(default_scheduler_settings);
       state.SetVisible(true);
       EXPECT_ACTION_UPDATE_STATE(
           SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
       EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
       state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
       state.SetBeginMainFrameState(begin_main_frame_states[i]);
       state.SetVisible(false);
       state.SetNeedsRedraw(true);
       if (j == 1)
         state.OnBeginImplFrame();
 
       state.SetCanDraw(false);
-      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE,
+      EXPECT_NE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE,
                 state.NextAction());
     }
   }
 }
 
 TEST(SchedulerStateMachineTest,
      TestCanRedrawWithWaitingForFirstDrawMakesProgress) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   state.SetVisible(true);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
 
   state.SetActiveTreeNeedsFirstDraw(true);
   state.SetNeedsBeginMainFrame();
   state.SetNeedsRedraw(true);
   state.SetCanDraw(false);
   state.OnBeginImplFrame();
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestSetNeedsBeginMainFrameIsNotLost) {
   SchedulerSettings scheduler_settings;
   StateMachine state(scheduler_settings);
   SET_UP_STATE(state)
   state.SetNeedsBeginMainFrame();
 
   EXPECT_TRUE(state.BeginFrameNeeded());
@@ skipping 38 matching lines @@
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   state.OnBeginImplFrameDeadline();
 
   EXPECT_TRUE(state.active_tree_needs_first_draw());
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestFullCycle) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
 
   // Start clean and set commit.
   state.SetNeedsBeginMainFrame();
@@ skipping 19 matching lines @@
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
   EXPECT_TRUE(state.needs_redraw());
 
   // Expect to do nothing until BeginImplFrame deadline
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // At BeginImplFrame deadline, draw.
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
 
   // Should be synchronized, no draw needed, no action needed.
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_MAIN_FRAME_STATE(SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_IDLE);
   EXPECT_FALSE(state.needs_redraw());
 }
 
 TEST(SchedulerStateMachineTest, CommitWithoutDrawWithPendingTree) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
@@ skipping 144 matching lines @@
 
   // Can't BeginMainFrame yet since last commit hasn't been drawn yet.
   state.SetNeedsBeginMainFrame();
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Now call ready to draw which will allow the draw to happen and
   // BeginMainFrame to be sent.
   state.NotifyReadyToDraw();
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  // Swap throttled from this point.
-  state.DidSwapBuffers();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  // Submit throttled from this point.
+  state.DidSubmitCompositorFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
-  // Can't BeginMainFrame yet since we're swap throttled.
+  // Can't BeginMainFrame yet since we're submit-frame throttled.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
-  // Swap ack unblocks BeginMainFrame.
-  state.DidSwapBuffersComplete();
+  // CompositorFrameAck unblocks BeginMainFrame.
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Draw the newly activated tree.
   state.NotifyReadyToDraw();
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestFullCycleWithCommitRequestInbetween) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
 
   // Start clean and set commit.
   state.SetNeedsBeginMainFrame();
@@ skipping 21 matching lines @@
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
   EXPECT_TRUE(state.needs_redraw());
 
   // Expect to do nothing until BeginImplFrame deadline.
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // At BeginImplFrame deadline, draw.
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
 
   // Should be synchronized, no draw needed, no action needed.
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_MAIN_FRAME_STATE(SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_IDLE);
   EXPECT_FALSE(state.needs_redraw());
 
   // Next BeginImplFrame should initiate second commit.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
@@ skipping 261 matching lines @@
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_EQ(state.compositor_frame_sink_state(),
             SchedulerStateMachine::COMPOSITOR_FRAME_SINK_ACTIVE);
 
   // Finishing the first commit after initializing an CompositorFrameSink should
   // automatically cause a redraw.
   EXPECT_TRUE(state.RedrawPending());
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_FALSE(state.RedrawPending());
 
   // Next frame as no work to do.
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Once the context is recreated, whether we draw should be based on
   // SetCanDraw if waiting on first draw after activate.
   state.SetNeedsRedraw(true);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   state.SetCanDraw(false);
   EXPECT_ACTION(SchedulerStateMachine::ACTION_NONE);
   state.SetCanDraw(true);
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Once the context is recreated, whether we draw should be based on
   // SetCanDraw if waiting on first draw after activate.
   state.SetNeedsRedraw(true);
   state.SetNeedsBeginMainFrame();
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   // Activate so we need the first draw
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
   EXPECT_TRUE(state.needs_redraw());
 
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
   state.SetCanDraw(false);
-  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_ABORT);
   state.SetCanDraw(true);
-  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
+  EXPECT_ACTION(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
 }
 
 TEST(SchedulerStateMachineTest, TestContextLostWhileCommitInProgress) {
   SchedulerSettings scheduler_settings;
   StateMachine state(scheduler_settings);
   SET_UP_STATE(state)
 
   // Get a commit in flight.
   state.SetNeedsBeginMainFrame();
 
   // Set damage and expect a draw.
   state.SetNeedsRedraw(true);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Cause a lost context while the BeginMainFrame is in flight.
   state.DidLoseCompositorFrameSink();
 
   // Ask for another draw. Expect nothing happens.
   state.SetNeedsRedraw(true);
   EXPECT_ACTION(SchedulerStateMachine::ACTION_NONE);
 
   // Finish the frame, commit and activate.
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
 
   // We will abort the draw when the CompositorFrameSink is lost if we are
   // waiting for the first draw to unblock the main thread.
   EXPECT_TRUE(state.active_tree_needs_first_draw());
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
 
   // Expect to begin context recreation only in BEGIN_IMPL_FRAME_STATE_IDLE
   EXPECT_IMPL_FRAME_STATE(SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_IDLE);
   EXPECT_ACTION(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
 
   state.OnBeginImplFrame();
   EXPECT_IMPL_FRAME_STATE(
       SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_BEGIN_FRAME);
   EXPECT_ACTION(SchedulerStateMachine::ACTION_NONE);
@@ skipping 14 matching lines @@
   state.SetNeedsBeginMainFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Set damage and expect a draw.
   state.SetNeedsRedraw(true);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Cause a lost context while the BeginMainFrame is in flight.
   state.DidLoseCompositorFrameSink();
 
   // Ask for another draw and also set needs commit. Expect nothing happens.
   state.SetNeedsRedraw(true);
   state.SetNeedsBeginMainFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Finish the frame, and commit and activate.
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
 
   // Because the CompositorFrameSink is missing, we expect the draw to abort.
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
 
   // Expect to begin context recreation only in BEGIN_IMPL_FRAME_STATE_IDLE
   EXPECT_IMPL_FRAME_STATE(SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_IDLE);
   EXPECT_ACTION(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
 
   state.OnBeginImplFrame();
   EXPECT_IMPL_FRAME_STATE(
       SchedulerStateMachine::BEGIN_IMPL_FRAME_STATE_INSIDE_BEGIN_FRAME);
   EXPECT_ACTION(SchedulerStateMachine::ACTION_NONE);
@@ skipping 14 matching lines @@
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
-  state.DidSwapBuffersComplete();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest,
      DontDrawBeforeCommitAfterLostCompositorFrameSink) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
 
   state.SetNeedsRedraw(true);
@@ skipping 23 matching lines @@
   state.DidLoseCompositorFrameSink();
 
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
 
   EXPECT_TRUE(state.PendingActivationsShouldBeForced());
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
 
   EXPECT_TRUE(state.PendingDrawsShouldBeAborted());
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
 }
 
 TEST(SchedulerStateMachineTest, TestNoBeginFrameNeededWhenInvisible) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   state.SetVisible(true);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
@@ skipping 43 matching lines @@
       SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_SENT);
   state.SetNeedsBeginMainFrame();
 
   // After the commit completes, activation and draw happen immediately
   // because we are not visible.
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest,
      TestFinishCommitWhenCommitInProgressAndBeginFrameSourcePaused) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   state.SetVisible(true);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.CreateAndInitializeCompositorFrameSinkWithActivatedCommit();
   state.SetBeginFrameSourcePaused(true);
   state.SetBeginMainFrameState(
       SchedulerStateMachine::BEGIN_MAIN_FRAME_STATE_SENT);
   state.SetNeedsBeginMainFrame();
 
   // After the commit completes, activation and draw happen immediately
   // because we are not visible.
   state.NotifyBeginMainFrameStarted();
   state.NotifyReadyToCommit();
   EXPECT_TRUE(state.PendingActivationsShouldBeForced());
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_COMMIT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_TRUE(state.active_tree_needs_first_draw());
-  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_AND_SWAP_ABORT);
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_ABORT);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest, TestInitialActionsWhenContextLost) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
   state.SetNeedsBeginMainFrame();
   state.DidLoseCompositorFrameSink();
 
@@ skipping 132 matching lines @@
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.NotifyReadyToActivate();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_ACTIVATE_SYNC_TREE);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   EXPECT_TRUE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
 }
 
 TEST(SchedulerStateMachineTest, TestImplLatencyTakesPriority) {
   SchedulerSettings default_scheduler_settings;
   StateMachine state(default_scheduler_settings);
   SET_UP_STATE(state)
 
   // This test ensures that impl-draws are prioritized over main thread updates
   // in prefer impl latency mode.
   state.SetNeedsRedraw(true);
   state.SetNeedsBeginMainFrame();
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Verify the deadline is not triggered early until we enter
   // prefer impl latency mode.
   EXPECT_FALSE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
   state.SetTreePrioritiesAndScrollState(
       SMOOTHNESS_TAKES_PRIORITY,
       ScrollHandlerState::SCROLL_DOES_NOT_AFFECT_SCROLL_HANDLER);
   EXPECT_TRUE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
 
   // Trigger the deadline.
   state.OnBeginImplFrameDeadline();
-  EXPECT_ACTION_UPDATE_STATE(
-      SchedulerStateMachine::ACTION_DRAW_AND_SWAP_IF_POSSIBLE);
-  state.DidSwapBuffers();
+  EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_DRAW_IF_POSSIBLE);
+  state.DidSubmitCompositorFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
-  state.DidSwapBuffersComplete();
+  state.DidReceiveCompositorFrameAck();
 
   // Request a new commit and finish the previous one.
   state.SetNeedsBeginMainFrame();
   FinishPreviousCommitAndDrawWithoutExitingDeadline(&state);
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_SEND_BEGIN_MAIN_FRAME);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
-  state.DidSwapBuffersComplete();
+  state.DidReceiveCompositorFrameAck();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
   // Finish the previous commit and draw it.
   FinishPreviousCommitAndDrawWithoutExitingDeadline(&state);
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 
-  // Verify we do not send another BeginMainFrame if was are swap throttled
-  // and did not just swap.
+  // Verify we do not send another BeginMainFrame if was are submit-frame
+  // throttled and did not just submit one.
   state.SetNeedsBeginMainFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   state.OnBeginImplFrame();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
   EXPECT_FALSE(state.ShouldTriggerBeginImplFrameDeadlineImmediately());
   state.OnBeginImplFrameDeadline();
   EXPECT_ACTION_UPDATE_STATE(SchedulerStateMachine::ACTION_NONE);
 }
 
 TEST(SchedulerStateMachineTest,
@@ skipping 150 matching lines @@
   state.OnBeginImplFrameDeadline();
   state.OnBeginImplFrameIdle();
 
   // The scheduler should begin the CompositorFrameSink creation now.
   EXPECT_ACTION_UPDATE_STATE(
       SchedulerStateMachine::ACTION_BEGIN_COMPOSITOR_FRAME_SINK_CREATION);
 }
 
 }  // namespace
 }  // namespace cc