cc: Implement test task runner for tests.

cc/tiles/software_image_decode_controller_unittest.cc

 // Copyright 2015 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/tiles/software_image_decode_controller.h"
 
 #include "cc/playback/draw_image.h"
-#include "cc/raster/tile_task.h"
+#include "cc/test/simple_task_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 namespace cc {
 namespace {
 
 sk_sp<SkImage> CreateImage(int width, int height) {
   SkBitmap bitmap;
   bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height));
   return SkImage::MakeFromBitmap(bitmap);
@@ skipping 348 matching lines @@
 
   DrawImage another_draw_image(
       image, SkIRect::MakeWH(image->width(), image->height()), quality,
       CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       another_draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task.get() == another_task.get());
 
+  SimpleTaskRunner::ProcessTask(task.get());
+
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest,
      GetTaskForImageSameImageDifferentQuality) {
   SoftwareImageDecodeController controller;
   sk_sp<SkImage> image = CreateImage(100, 100);
   bool is_decomposable = true;
 
@@ skipping 29 matching lines @@
       CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> low_quality_task;
   need_unref = controller.GetTaskForImageAndRef(
       low_quality_draw_image, ImageDecodeController::TracingInfo(),
       &low_quality_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(low_quality_task);
   EXPECT_TRUE(high_quality_task.get() != low_quality_task.get());
   EXPECT_TRUE(medium_quality_task.get() != low_quality_task.get());
 
+  SimpleTaskRunner::ProcessTask(high_quality_task.get());
+  SimpleTaskRunner::ProcessTask(medium_quality_task.get());
+  SimpleTaskRunner::ProcessTask(low_quality_task.get());
+
   controller.UnrefImage(high_quality_draw_image);
   controller.UnrefImage(low_quality_draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, GetTaskForImageSameImageDifferentSize) {
   SoftwareImageDecodeController controller;
   sk_sp<SkImage> image = CreateImage(100, 100);
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
@@ skipping 11 matching lines @@
       image, SkIRect::MakeWH(image->width(), image->height()), quality,
       CreateMatrix(SkSize::Make(0.25f, 0.25f), is_decomposable));
   scoped_refptr<TileTask> quarter_size_task;
   need_unref = controller.GetTaskForImageAndRef(
       quarter_size_draw_image, ImageDecodeController::TracingInfo(),
       &quarter_size_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(quarter_size_task);
   EXPECT_TRUE(half_size_task.get() != quarter_size_task.get());
 
+  SimpleTaskRunner::ProcessTask(half_size_task.get());
+  SimpleTaskRunner::ProcessTask(quarter_size_task.get());
+
   controller.UnrefImage(half_size_draw_image);
   controller.UnrefImage(quarter_size_draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, GetTaskForImageDifferentImage) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> first_image = CreateImage(100, 100);
@@ skipping 11 matching lines @@
       second_image,
       SkIRect::MakeWH(second_image->width(), second_image->height()), quality,
       CreateMatrix(SkSize::Make(0.25f, 0.25f), is_decomposable));
   scoped_refptr<TileTask> second_task;
   need_unref = controller.GetTaskForImageAndRef(
       second_draw_image, ImageDecodeController::TracingInfo(), &second_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(second_task);
   EXPECT_TRUE(first_task.get() != second_task.get());
 
+  SimpleTaskRunner::ProcessTask(first_task.get());
+  SimpleTaskRunner::ProcessTask(second_task.get());
+
   controller.UnrefImage(first_draw_image);
   controller.UnrefImage(second_draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyDecoded) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  // TODO(prashant.n): Implement proper task life cycle. crbug.com/599863.
-  task->RunOnWorkerThread();
+  SimpleTaskRunner::ScheduleTask(task.get());
+  SimpleTaskRunner::RunTask(task.get());
 
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_TRUE(need_unref);
   EXPECT_FALSE(another_task);
 
-  task->OnTaskCompleted();
+  SimpleTaskRunner::CompleteTask(task.get());
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, GetTaskForImageAlreadyPrerolled) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kLow_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(1.f, 1.f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->RunOnWorkerThread();
+  SimpleTaskRunner::ScheduleTask(task.get());
+  SimpleTaskRunner::RunTask(task.get());
 
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_TRUE(need_unref);
   EXPECT_FALSE(another_task);
 
-  task->OnTaskCompleted();
+  SimpleTaskRunner::CompleteTask(task.get());
 
   scoped_refptr<TileTask> third_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &third_task);
   EXPECT_TRUE(need_unref);
   EXPECT_FALSE(third_task);
 
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
@@ skipping 14 matching lines @@
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(another_task.get() == task.get());
 
   // Didn't run the task, complete it (it was canceled).
-  task->OnTaskCompleted();
+  SimpleTaskRunner::CancelTask(task.get());
+  SimpleTaskRunner::CompleteTask(task.get());
 
   // Fully cancel everything (so the raster would unref things).
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 
   // Here a new task is created.
   scoped_refptr<TileTask> third_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &third_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(third_task);
   EXPECT_FALSE(third_task.get() == task.get());
 
+  SimpleTaskRunner::ProcessTask(third_task.get());
+
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest,
      GetTaskForImageCanceledWhileReffedGetsNewTask) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
   scoped_refptr<TileTask> another_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &another_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(another_task.get() == task.get());
 
   // Didn't run the task, complete it (it was canceled).
-  task->OnTaskCompleted();
+  SimpleTaskRunner::CancelTask(task.get());
+  SimpleTaskRunner::CompleteTask(task.get());
 
   // Note that here, everything is reffed, but a new task is created. This is
   // possible with repeated schedule/cancel operations.
   scoped_refptr<TileTask> third_task;
   need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &third_task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(third_task);
   EXPECT_FALSE(third_task.get() == task.get());
 
+  SimpleTaskRunner::ProcessTask(third_task.get());
+
   // 3 Unrefs!
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, GetDecodedImageForDraw) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kHigh_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->RunOnWorkerThread();
-
-  task->OnTaskCompleted();
+  SimpleTaskRunner::ProcessTask(task.get());
 
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_TRUE(decoded_draw_image.image());
   EXPECT_EQ(50, decoded_draw_image.image()->width());
   EXPECT_EQ(50, decoded_draw_image.image()->height());
   EXPECT_FLOAT_EQ(0.5f, decoded_draw_image.scale_adjustment().width());
   EXPECT_FLOAT_EQ(0.5f, decoded_draw_image.scale_adjustment().height());
   EXPECT_EQ(kLow_SkFilterQuality, decoded_draw_image.filter_quality());
   EXPECT_FALSE(decoded_draw_image.is_scale_adjustment_identity());
@@ skipping 12 matching lines @@
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(
       image, SkIRect::MakeXYWH(20, 30, image->width(), image->height()),
       quality, CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->RunOnWorkerThread();
-
-  task->OnTaskCompleted();
+  SimpleTaskRunner::ProcessTask(task.get());
 
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_TRUE(decoded_draw_image.image());
   EXPECT_EQ(40, decoded_draw_image.image()->width());
   EXPECT_EQ(35, decoded_draw_image.image()->height());
   EXPECT_FLOAT_EQ(0.5f, decoded_draw_image.scale_adjustment().width());
   EXPECT_FLOAT_EQ(0.5f, decoded_draw_image.scale_adjustment().height());
   EXPECT_EQ(kLow_SkFilterQuality, decoded_draw_image.filter_quality());
   EXPECT_FALSE(decoded_draw_image.is_scale_adjustment_identity());
@@ skipping 79 matching lines @@
   EXPECT_EQ(kLow_SkFilterQuality, decoded_draw_image.filter_quality());
   EXPECT_FALSE(decoded_draw_image.is_scale_adjustment_identity());
   EXPECT_TRUE(decoded_draw_image.is_at_raster_decode());
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
-  task->RunOnWorkerThread();
-
-  task->OnTaskCompleted();
+  SimpleTaskRunner::ProcessTask(task.get());
 
   DecodedDrawImage another_decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   // This should get the new decoded/locked image, not the one we're using at
   // raster.
   // TODO(vmpstr): We can possibly optimize this so that the decode simply moves
   // the image to the right spot.
   EXPECT_NE(decoded_draw_image.image()->uniqueID(),
             another_decoded_draw_image.image()->uniqueID());
   EXPECT_FALSE(another_decoded_draw_image.is_at_raster_decode());
@@ skipping 28 matching lines @@
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(need_unref);
   EXPECT_TRUE(task);
 
   // 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->OnTaskCompleted();
+  SimpleTaskRunner::ProcessTask(task.get());
 
   DecodedDrawImage another_decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   // This should get the decoded/locked image which we originally decoded at
   // raster time, since it's now in the locked cache.
   EXPECT_EQ(decoded_draw_image.image()->uniqueID(),
             another_decoded_draw_image.image()->uniqueID());
   EXPECT_FALSE(another_decoded_draw_image.is_at_raster_decode());
 
   controller.DrawWithImageFinished(draw_image, another_decoded_draw_image);
@@ skipping 55 matching lines @@
   DrawImage draw_image(image, SkIRect::MakeWH(image->width(), image->height()),
                        quality,
                        CreateMatrix(SkSize::Make(1.f, 1.f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(task);
   EXPECT_TRUE(need_unref);
 
+  SimpleTaskRunner::ProcessTask(task.get());
+
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_TRUE(decoded_draw_image.image());
   // If we decoded the image and cached it, it would be stored in a different
   // SkImage object.
   EXPECT_TRUE(decoded_draw_image.image() != image);
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, LowQualityScaledSubrectIsHandled) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kLow_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeXYWH(10, 10, 80, 80), quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(task);
   EXPECT_TRUE(need_unref);
 
+  SimpleTaskRunner::ProcessTask(task.get());
+
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_TRUE(decoded_draw_image.image());
   // If we decoded the image and cached it, it would be stored in a different
   // SkImage object.
   EXPECT_TRUE(decoded_draw_image.image() != image);
   EXPECT_EQ(kLow_SkFilterQuality, decoded_draw_image.filter_quality());
   EXPECT_TRUE(decoded_draw_image.is_scale_adjustment_identity());
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.UnrefImage(draw_image);
 }
 
 TEST(SoftwareImageDecodeControllerTest, NoneQualityScaledSubrectIsHandled) {
   SoftwareImageDecodeController controller;
   bool is_decomposable = true;
   SkFilterQuality quality = kNone_SkFilterQuality;
 
   sk_sp<SkImage> image = CreateImage(100, 100);
   DrawImage draw_image(image, SkIRect::MakeXYWH(10, 10, 80, 80), quality,
                        CreateMatrix(SkSize::Make(0.5f, 0.5f), is_decomposable));
 
   scoped_refptr<TileTask> task;
   bool need_unref = controller.GetTaskForImageAndRef(
       draw_image, ImageDecodeController::TracingInfo(), &task);
   EXPECT_TRUE(task);
   EXPECT_TRUE(need_unref);
 
+  SimpleTaskRunner::ProcessTask(task.get());
+
   DecodedDrawImage decoded_draw_image =
       controller.GetDecodedImageForDraw(draw_image);
   EXPECT_TRUE(decoded_draw_image.image());
   // If we decoded the image and cached it, it would be stored in a different
   // SkImage object.
   EXPECT_TRUE(decoded_draw_image.image() != image);
   EXPECT_EQ(kNone_SkFilterQuality, decoded_draw_image.filter_quality());
   EXPECT_TRUE(decoded_draw_image.is_scale_adjustment_identity());
 
   controller.DrawWithImageFinished(draw_image, decoded_draw_image);
   controller.UnrefImage(draw_image);
 }
 }  // namespace
 }  // namespace cc