Modularize DeviceClassManager to chrome/browser/device

The device module is a "higher level flags" target, which dictates if
broader features should be turned on or off based on the device,
command line, and some feature flags.

Change-Id: I9842eb8236966af5308bcc29c0ca0ccd1315d812
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2382670Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809576}

chrome/android/BUILD.gn

@@ -306,6 +306,7 @@ android_library("chrome_java") {
     "//chrome/browser/android/lifecycle:java",
     "//chrome/browser/browser_controls/android:java",
     "//chrome/browser/contextmenu:java",
+    "//chrome/browser/device:java",
     "//chrome/browser/download/android:factory_java",
     "//chrome/browser/download/android:java",
     "//chrome/browser/download/android:java_resources",
@@ -788,6 +789,7 @@ junit_binary("chrome_junit_tests") {
     "//chrome/browser/android/lifecycle:java",
     "//chrome/browser/browser_controls/android:java",
     "//chrome/browser/browser_controls/android:junit",
+    "//chrome/browser/device:java",
     "//chrome/browser/download/android:java",
     "//chrome/browser/download/android:junit_tests",
     "//chrome/browser/endpoint_fetcher:java",
@@ -984,6 +986,7 @@ android_library("chrome_test_java") {
     "//chrome/browser/android/lifecycle:java",
     "//chrome/browser/browser_controls/android:java",
     "//chrome/browser/contextmenu:java",
+    "//chrome/browser/device:java",
     "//chrome/browser/download/android:java",
     "//chrome/browser/engagement/android:java",
     "//chrome/browser/enterprise/util:java",

chrome/android/chrome_java_sources.gni

@@ -490,7 +490,6 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/dependency_injection/ChromeAppModule.java",
   "java/src/org/chromium/chrome/browser/dependency_injection/ChromeCommonQualifiers.java",
   "java/src/org/chromium/chrome/browser/dependency_injection/ModuleFactoryOverrides.java",
-  "java/src/org/chromium/chrome/browser/device/DeviceClassManager.java",
   "java/src/org/chromium/chrome/browser/device_dialog/BluetoothChooserDialog.java",
   "java/src/org/chromium/chrome/browser/device_dialog/BluetoothScanningPermissionDialog.java",
   "java/src/org/chromium/chrome/browser/device_dialog/DeviceItemAdapter.java",

chrome/browser/device/BUILD.gn

+# Copyright 2020 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.
+
+import("//build/config/android/rules.gni")
+
+android_library("java") {
+  sources = [ "android/java/src/org/chromium/chrome/browser/device/DeviceClassManager.java" ]
+  deps = [
+    "//base:base_java",
+    "//chrome/browser/flags:java",
+    "//chrome/browser/preferences:java",
+    "//chrome/browser/util:java",
+    "//third_party/android_deps:androidx_annotation_annotation_java",
+    "//ui/android:ui_no_recycler_view_java",
+  ]
+}

chrome/browser/device/OWNERS

+file://chrome/android/OWNERS
+
+# COMPONENT: Internals>Flags
+# TEAM: chrome-android-app@chromium.org
+# OS: Android

chrome/android/java/src/org/chromium/chrome/browser/device/DeviceClassManager.java → chrome/browser/device/android/java/src/org/chromium/chrome/browser/device/DeviceClassManager.java

@@ -66,10 +66,9 @@ public class DeviceClassManager {
 
         // Flag based configurations.
         CommandLine commandLine = CommandLine.getInstance();
-        mEnableAccessibilityLayout |= commandLine
-                .hasSwitch(ChromeSwitches.ENABLE_ACCESSIBILITY_TAB_SWITCHER);
-        mEnableFullscreen =
-                !commandLine.hasSwitch(ChromeSwitches.DISABLE_FULLSCREEN);
+        mEnableAccessibilityLayout |=
+                commandLine.hasSwitch(ChromeSwitches.ENABLE_ACCESSIBILITY_TAB_SWITCHER);
+        mEnableFullscreen = !commandLine.hasSwitch(ChromeSwitches.DISABLE_FULLSCREEN);
 
         // Related features.
         if (mEnableAccessibilityLayout) {
@@ -88,6 +87,7 @@ public class DeviceClassManager {
      * @return Whether or not should use the accessibility tab switcher.
      */
     public static boolean enableAccessibilityLayout() {
+        // TODO(crbug.com/1007598): Support TabGrid and TabGroup in Accessibility mode.
         if (isPhone()
                 && CachedFeatureFlags.isEnabled(ChromeFeatureList.TAB_GROUPS_CONTINUATION_ANDROID)
                 && CachedFeatureFlags.isEnabled(ChromeFeatureList.TAB_GROUPS_ANDROID)) {