cc: Remove ResourceUpdateQueue and ResourceUpdateController.

cc/resources/resource_update_controller.cc

Index: cc/resources/resource_update_controller.cc
diff --git a/cc/resources/resource_update_controller.cc b/cc/resources/resource_update_controller.cc
deleted file mode 100644
index 2dbc0c74ac3ac0e689932ab6210c807b2f1f0035..0000000000000000000000000000000000000000
--- a/cc/resources/resource_update_controller.cc
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright 2012 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/resources/resource_update_controller.h"
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "cc/resources/prioritized_resource.h"
-#include "cc/resources/resource_provider.h"
-
-namespace {
-
-// Number of partial updates we allow.
-const size_t kPartialTextureUpdatesMax = 12;
-
-// Measured in seconds.
-const double kUploaderBusyTickRate = 0.001;
-
-// Number of blocking update intervals to allow.
-const size_t kMaxBlockingUpdateIntervals = 4;
-
-}  // namespace
-
-namespace cc {
-
-size_t ResourceUpdateController::MaxPartialTextureUpdates() {
-  return kPartialTextureUpdatesMax;
-}
-
-size_t ResourceUpdateController::MaxFullUpdatesPerTick(
-    ResourceProvider* resource_provider) {
-  return resource_provider->EstimatedUploadsPerTick();
-}
-
-ResourceUpdateController::ResourceUpdateController(
-    ResourceUpdateControllerClient* client,
-    base::SingleThreadTaskRunner* task_runner,
-    scoped_ptr<ResourceUpdateQueue> queue,
-    ResourceProvider* resource_provider)
-    : client_(client),
-      queue_(queue.Pass()),
-      resource_provider_(resource_provider),
-      texture_updates_per_tick_(MaxFullUpdatesPerTick(resource_provider)),
-      first_update_attempt_(true),
-      task_runner_(task_runner),
-      task_posted_(false),
-      ready_to_finalize_(false),
-      weak_factory_(this) {}
-
-ResourceUpdateController::~ResourceUpdateController() {}
-
-void ResourceUpdateController::PerformMoreUpdates(
-    base::TimeTicks time_limit) {
-  time_limit_ = time_limit;
-
-  // Update already in progress or we are already done.
-  if (task_posted_ || ready_to_finalize_)
-    return;
-
-  // Call UpdateMoreTexturesNow() directly unless it's the first update
-  // attempt. This ensures that we empty the update queue in a finite
-  // amount of time.
-  if (!first_update_attempt_)
-    UpdateMoreTexturesNow();
-
-  // Post a 0-delay task when no updates were left. When it runs,
-  // ReadyToFinalizeTextureUpdates() will be called.
-  if (!UpdateMoreTexturesIfEnoughTimeRemaining()) {
-    task_posted_ = true;
-    task_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&ResourceUpdateController::OnTimerFired,
-                   weak_factory_.GetWeakPtr()));
-  }
-
-  first_update_attempt_ = false;
-}
-
-void ResourceUpdateController::DiscardUploadsToEvictedResources() {
-  queue_->ClearUploadsToEvictedResources();
-}
-
-void ResourceUpdateController::UpdateTexture(ResourceUpdate update) {
-  update.bitmap->lockPixels();
-  update.texture->SetPixels(
-      resource_provider_,
-      static_cast<const uint8_t*>(update.bitmap->getPixels()),
-      update.content_rect,
-      update.source_rect,
-      update.dest_offset);
-  update.bitmap->unlockPixels();
-}
-
-void ResourceUpdateController::Finalize() {
-  while (queue_->FullUploadSize())
-    UpdateTexture(queue_->TakeFirstFullUpload());
-
-  while (queue_->PartialUploadSize())
-    UpdateTexture(queue_->TakeFirstPartialUpload());
-
-  resource_provider_->FlushUploads();
-}
-
-void ResourceUpdateController::OnTimerFired() {
-  task_posted_ = false;
-  if (!UpdateMoreTexturesIfEnoughTimeRemaining()) {
-    ready_to_finalize_ = true;
-    client_->ReadyToFinalizeTextureUpdates();
-  }
-}
-
-base::TimeTicks ResourceUpdateController::UpdateMoreTexturesCompletionTime() {
-  return resource_provider_->EstimatedUploadCompletionTime(
-      texture_updates_per_tick_);
-}
-
-size_t ResourceUpdateController::UpdateMoreTexturesSize() const {
-  return texture_updates_per_tick_;
-}
-
-size_t ResourceUpdateController::MaxBlockingUpdates() const {
-  return UpdateMoreTexturesSize() * kMaxBlockingUpdateIntervals;
-}
-
-bool ResourceUpdateController::UpdateMoreTexturesIfEnoughTimeRemaining() {
-  while (resource_provider_->NumBlockingUploads() < MaxBlockingUpdates()) {
-    if (!queue_->FullUploadSize())
-      return false;
-
-    if (!time_limit_.is_null()) {
-      base::TimeTicks completion_time = UpdateMoreTexturesCompletionTime();
-      if (completion_time > time_limit_)
-        return true;
-    }
-
-    UpdateMoreTexturesNow();
-  }
-
-  task_posted_ = true;
-  task_runner_->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&ResourceUpdateController::OnTimerFired,
-                 weak_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(kUploaderBusyTickRate * 1000));
-  return true;
-}
-
-void ResourceUpdateController::UpdateMoreTexturesNow() {
-  size_t uploads = std::min(
-      queue_->FullUploadSize(), UpdateMoreTexturesSize());
-
-  if (!uploads)
-    return;
-
-  while (queue_->FullUploadSize() && uploads--)
-    UpdateTexture(queue_->TakeFirstFullUpload());
-
-  resource_provider_->FlushUploads();
-}
-
-}  // namespace cc