Revert of Load and apply a vcgt table from an ICC file to the internal display

ash/content/display/display_color_manager_chromeos.cc

Index: ash/content/display/display_color_manager_chromeos.cc
diff --git a/ash/content/display/display_color_manager_chromeos.cc b/ash/content/display/display_color_manager_chromeos.cc
deleted file mode 100644
index 0d7252f87399c8726e09611d5804a9d30233e9a1..0000000000000000000000000000000000000000
--- a/ash/content/display/display_color_manager_chromeos.cc
+++ /dev/null
@@ -1,139 +0,0 @@
-// 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 "ash/content/display/display_color_manager_chromeos.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "chromeos/chromeos_switches.h"
-#include "content/public/browser/browser_thread.h"
-#include "third_party/qcms/src/qcms.h"
-#include "ui/display/types/display_snapshot.h"
-#include "ui/display/types/gamma_ramp_rgb_entry.h"
-#include "ui/display/types/native_display_delegate.h"
-#include "ui/gfx/display.h"
-#include "ui/gfx/screen.h"
-
-using content::BrowserThread;
-
-namespace ash {
-
-namespace {
-
-bool ParseFile(const base::FilePath& path,
-               DisplayColorManager::ColorCalibrationData* data) {
-  qcms_profile* display_profile = qcms_profile_from_path(path.value().c_str());
-
-  if (!display_profile) {
-    LOG(WARNING) << "Unable to load ICC file: " << path.value();
-    return false;
-  }
-
-  size_t vcgt_channel_length =
-      qcms_profile_get_vcgt_channel_length(display_profile);
-  if (!vcgt_channel_length) {
-    LOG(WARNING) << "No vcgt table in ICC file: " << path.value();
-    return false;
-  }
-
-  std::vector<uint16_t> vcgt_data;
-  vcgt_data.resize(vcgt_channel_length * 3);
-  if (!qcms_profile_get_vcgt_rgb_channels(display_profile, &vcgt_data[0])) {
-    LOG(WARNING) << "Unable to get vcgt data";
-    qcms_profile_release(display_profile);
-    return false;
-  }
-
-  data->lut.resize(vcgt_channel_length);
-  for (size_t i = 0; i < vcgt_channel_length; ++i) {
-    data->lut[i].r = vcgt_data[i];
-    data->lut[i].g = vcgt_data[vcgt_channel_length + i];
-    data->lut[i].b = vcgt_data[(vcgt_channel_length * 2) + i];
-  }
-  qcms_profile_release(display_profile);
-  return true;
-}
-
-}  // namespace
-
-DisplayColorManager::DisplayColorManager(ui::DisplayConfigurator* configurator)
-    : configurator_(configurator) {
-  configurator_->AddObserver(this);
-  LoadInternalFromCommandLine();
-}
-
-DisplayColorManager::~DisplayColorManager() {
-  configurator_->RemoveObserver(this);
-
-  for (auto it : calibration_map_) {
-    delete it.second;
-    calibration_map_.erase(it.first);
-  }
-}
-
-void DisplayColorManager::OnDisplayModeChanged(
-    const ui::DisplayConfigurator::DisplayStateList& display_states) {
-  for (const ui::DisplaySnapshot* state : display_states)
-    ApplyDisplayColorCalibration(state->display_id());
-}
-
-void DisplayColorManager::ApplyDisplayColorCalibration(uint64_t display_id) {
-  if (calibration_map_.find(display_id) != calibration_map_.end()) {
-    ColorCalibrationData* ramp = calibration_map_[display_id];
-    if (!configurator_->SetGammaRamp(display_id, ramp->lut))
-      LOG(WARNING) << "Error applying gamma ramp";
-  }
-}
-
-void DisplayColorManager::LoadInternalFromCommandLine() {
-  const base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
-  if (command_line->HasSwitch(
-          chromeos::switches::kInternalDisplayColorProfileFile)) {
-    const base::FilePath& path = command_line->GetSwitchValuePath(
-        chromeos::switches::kInternalDisplayColorProfileFile);
-    VLOG(1) << "Loading ICC file : " << path.value()
-            << "for internal display id: " << gfx::Display::InternalDisplayId();
-    LoadCalibrationForDisplay(gfx::Display::InternalDisplayId(), path);
-  }
-}
-
-void DisplayColorManager::LoadCalibrationForDisplay(
-    int64_t display_id,
-    const base::FilePath& path) {
-  if (display_id == gfx::Display::kInvalidDisplayID) {
-    LOG(WARNING) << "Trying to load calibration data for invalid display id";
-    return;
-  }
-
-  scoped_ptr<ColorCalibrationData> data(new ColorCalibrationData());
-  base::Callback<bool(void)> request(
-      base::Bind(&ParseFile, path, base::Unretained(data.get())));
-  base::PostTaskAndReplyWithResult(
-      BrowserThread::GetBlockingPool(), FROM_HERE, request,
-      base::Bind(&DisplayColorManager::UpdateCalibrationData, AsWeakPtr(),
-                 display_id, base::Passed(data.Pass())));
-}
-
-void DisplayColorManager::UpdateCalibrationData(
-    uint64_t display_id,
-    scoped_ptr<ColorCalibrationData> data,
-    bool success) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  if (success) {
-    // The map takes over ownership of the underlying memory.
-    calibration_map_[display_id] = data.release();
-  }
-}
-
-DisplayColorManager::ColorCalibrationData::ColorCalibrationData() {
-}
-
-DisplayColorManager::ColorCalibrationData::~ColorCalibrationData() {
-}
-
-}  // namespace ash