Revert of Refactor download image-MIME-type-detection code.

chrome/browser/chromeos/note_taking_app_utils.cc

Index: chrome/browser/chromeos/note_taking_app_utils.cc
diff --git a/chrome/browser/chromeos/note_taking_app_utils.cc b/chrome/browser/chromeos/note_taking_app_utils.cc
deleted file mode 100644
index ff06087d71cc1dc27faed4eb54a170020b0bc3c9..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/note_taking_app_utils.cc
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright 2016 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 "chrome/browser/chromeos/note_taking_app_utils.h"
-
-#include <string>
-#include <vector>
-
-#include "apps/launcher.h"
-#include "ash/common/system/chromeos/palette/palette_utils.h"
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/strings/string_split.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chromeos/chromeos_switches.h"
-#include "extensions/browser/extension_registry.h"
-#include "extensions/common/extension.h"
-#include "url/gurl.h"
-
-namespace chromeos {
-namespace {
-
-// TODO(derat): Add more IDs.
-const char* const kExtensionIds[] = {
-    "hmjkmjkepdijhoojdojkdfohbdgmmhki",  // Google Keep app (Web Store)
-};
-
-// Returns the first installed and enabled whitelisted note-taking app, or null
-// if none is installed.
-// TODO(derat): Instead of a using hardcoded list of IDs, use an app designated
-// by a pref.
-const extensions::Extension* GetApp(Profile* profile) {
-  std::vector<std::string> ids;
-
-  const std::string switch_value =
-      base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kNoteTakingAppIds);
-  if (!switch_value.empty()) {
-    ids = base::SplitString(switch_value, ",", base::TRIM_WHITESPACE,
-                            base::SPLIT_WANT_NONEMPTY);
-  } else {
-    ids.assign(kExtensionIds, kExtensionIds + arraysize(kExtensionIds));
-  }
-
-  const extensions::ExtensionRegistry* extension_registry =
-      extensions::ExtensionRegistry::Get(profile);
-  const extensions::ExtensionSet& enabled_extensions =
-      extension_registry->enabled_extensions();
-  for (const auto& id : ids) {
-    if (enabled_extensions.Contains(id)) {
-      return extension_registry->GetExtensionById(
-          id, extensions::ExtensionRegistry::ENABLED);
-    }
-  }
-  return nullptr;
-}
-
-}  // namespace
-
-bool IsNoteTakingAppAvailable(Profile* profile) {
-  DCHECK(profile);
-  return ash::IsPaletteEnabled() && GetApp(profile);
-}
-
-void LaunchNoteTakingAppForNewNote(Profile* profile,
-                                   const base::FilePath& path) {
-  DCHECK(profile);
-  const extensions::Extension* app = GetApp(profile);
-  if (!app) {
-    LOG(ERROR) << "Failed to find note-taking app";
-    return;
-  }
-
-  // TODO: Launch with an "action" launch source and the appropriate action type
-  // to create a new note once that's been added to chrome.appRuntime.
-  if (path.empty())
-    apps::LaunchPlatformApp(profile, app, extensions::SOURCE_UNTRACKED);
-  else
-    apps::LaunchPlatformAppWithPath(profile, app, path);
-}
-
-}  // namespace chromeos