cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

cc/tiles/software_image_decode_controller_unittest.cc

Index: cc/tiles/software_image_decode_controller_unittest.cc
diff --git a/cc/tiles/software_image_decode_controller_unittest.cc b/cc/tiles/software_image_decode_controller_unittest.cc
index 68a5a4f0d4da2ed5c7d5bfa6146742e29a4bcd78..08648c0ffb79d3500bed16602e6186c3c8d5ae2f 100644
--- a/cc/tiles/software_image_decode_controller_unittest.cc
+++ b/cc/tiles/software_image_decode_controller_unittest.cc
@@ -504,9 +504,7 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyDecoded) {
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
+  // TODO(prashant.n): Implement proper task life cycle. crbug.com/599863.
   task->RunOnWorkerThread();
 
   scoped_refptr<TileTask> another_task;
@@ -515,9 +513,7 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyDecoded) {
   EXPECT_TRUE(need_unref);
   EXPECT_FALSE(another_task);
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
@@ -538,9 +534,6 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyPrerolled) {
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
   task->RunOnWorkerThread();
 
   scoped_refptr<TileTask> another_task;
@@ -549,9 +542,7 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyPrerolled) {
   EXPECT_TRUE(need_unref);
   EXPECT_FALSE(another_task);
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   scoped_refptr<TileTask> third_task;
   need_unref = controller.GetTaskForImageAndRef(
@@ -579,10 +570,6 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageCanceledGetsNewTask) {
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
@@ -590,9 +577,7 @@ TEST(SoftwareImageDecodeControllerTest, GetTaskForImageCanceledGetsNewTask) {
   EXPECT_TRUE(another_task.get() == task.get());
 
   // Didn't run the task, complete it (it was canceled).
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   // Fully cancel everything (so the raster would unref things).
   controller.UnrefImage(draw_image);
@@ -625,10 +610,6 @@ TEST(SoftwareImageDecodeControllerTest,
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
@@ -636,9 +617,7 @@ TEST(SoftwareImageDecodeControllerTest,
   EXPECT_TRUE(another_task.get() == task.get());
 
   // Didn't run the task, complete it (it was canceled).
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   // Note that here, everything is reffed, but a new task is created. This is
   // possible with repeated schedule/cancel operations.
@@ -670,15 +649,9 @@ TEST(SoftwareImageDecodeControllerTest, GetDecodedImageForDraw) {
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   task->RunOnWorkerThread();
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
@@ -711,15 +684,9 @@ TEST(SoftwareImageDecodeControllerTest,
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   task->RunOnWorkerThread();
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
@@ -819,15 +786,9 @@ TEST(SoftwareImageDecodeControllerTest,
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   task->RunOnWorkerThread();
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   DecodedDrawImage another_decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
@@ -872,19 +833,13 @@ TEST(SoftwareImageDecodeControllerTest,
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->WillSchedule();
-  task->ScheduleOnOriginThread(nullptr);
-  task->DidSchedule();
-
   // If we finish the draw here, then we will use it for the locked decode
   // instead of decoding again.
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
 
   task->RunOnWorkerThread();
 
-  task->WillComplete();
-  task->CompleteOnOriginThread(nullptr);
-  task->DidComplete();
+  controller.OnImageDecodeTaskCompleted(task.get());
 
   DecodedDrawImage another_decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);