Split VROrientationDevice into it's own component

This change creates a new target containing only VROrientationDevice.
This will allow embedders (and content) to link against just the only
VROrientation device so that it doesn't need to link in all of device/vr
if that's the only device that it wants/needs.

Future work can create components for each device, such that including
AR, GVR, or each of the immersive (windows) runtimes can be done
independent of each other.

Bug: 1070807
Change-Id: I12c8ec78a60e876d820cac881354a088b9843d73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2154399
Commit-Queue: Alexander Cooper <alcooper@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#761164}

chrome/browser/BUILD.gn

@@ -5449,6 +5449,7 @@ jumbo_static_library("browser") {
     deps += [
       "//chrome/browser/vr:vr_common",
       "//device/vr",
+      "//device/vr/orientation",
       "//device/vr/public/cpp",
     ]
   }

chrome/browser/android/vr/BUILD.gn

@@ -126,6 +126,7 @@ static_library("vr_android") {
     "//content/public/browser",
     "//content/public/common",
     "//device/vr",
+    "//device/vr:vr_base",
     "//device/vr/buildflags:buildflags",
     "//services/device/public/mojom",
     "//services/metrics/public/cpp:ukm_builders",

chrome/browser/vr/BUILD.gn

@@ -678,6 +678,7 @@ if (!is_android) {
       "//chrome/test:xr_browser_tests_common",
       "//device/vr:vr",
       "//device/vr/buildflags:buildflags",
+      "//device/vr/orientation",
       "//device/vr/public/mojom",
       "//device/vr/public/mojom:test_mojom",
     ]

content/services/isolated_xr_device/BUILD.gn

@@ -27,6 +27,7 @@ source_set("lib") {
     "//content/public/common:common_sources",
     "//device/base",
     "//device/vr:vr",
+    "//device/vr:vr_base",
     "//device/vr/public/mojom",
     "//device/vr/public/mojom:test_mojom",
   ]

content/services/isolated_xr_device/xr_runtime_provider.cc

@@ -11,7 +11,6 @@
 #include "content/public/common/content_switches.h"
 #include "device/base/features.h"
 #include "device/vr/buildflags/buildflags.h"
-#include "device/vr/vr_device_base.h"
 
 #if BUILDFLAG(ENABLE_OPENVR)
 #include "device/vr/openvr/openvr_device.h"

device/BUILD.gn

@@ -334,6 +334,7 @@ test("device_unittests") {
     deps += [
       "//device/vr",
       "//device/vr:vr_fakes",
+      "//device/vr/orientation",
       "//device/vr/public/mojom",
       "//services/device/public/cpp/generic_sensor",
       "//ui/display",

device/vr/BUILD.gn

@@ -9,17 +9,39 @@ if (is_android) {
 }
 
 if (enable_vr) {
+  # TODO(https://crbug.com/1073113): Flesh out and cleanup this target.
+  component("vr_base") {
+    visibility = [
+      # TODO(https://crbug.com/843374): Move arcore_device
+      "//chrome/browser/android/vr/*",
+      "//content/services/isolated_xr_device/*",
+      "//device/vr/*",
+    ]
+
+    output_name = "device_vr_base"
+
+    defines = [ "IS_DEVICE_VR_BASE_IMPL" ]
+    sources = [
+      "vr_device.h",
+      "vr_device_base.cc",
+      "vr_device_base.h",
+    ]
+
+    public_deps = [
+      "//device/vr/public/cpp",
+      "//device/vr/public/mojom",
+    ]
+    deps = [
+      "//base",
+      "//mojo/public/cpp/bindings",
+    ]
+  }
+
   component("vr") {
     output_name = "device_vr"
 
     defines = [ "DEVICE_VR_IMPLEMENTATION" ]
     sources = [
-      "orientation/orientation_device.cc",
-      "orientation/orientation_device.h",
-      "orientation/orientation_device_provider.cc",
-      "orientation/orientation_device_provider.h",
-      "orientation/orientation_session.cc",
-      "orientation/orientation_session.h",
       "util/fps_meter.cc",
       "util/fps_meter.h",
       "util/gamepad_builder.cc",
@@ -34,14 +56,12 @@ if (enable_vr) {
       "util/transform_utils.h",
       "util/xr_standard_gamepad_builder.cc",
       "util/xr_standard_gamepad_builder.h",
-      "vr_device.h",
-      "vr_device_base.cc",
-      "vr_device_base.h",
       "vr_export.h",
     ]
 
     public_deps = [ "//device/vr/public/cpp" ]
     deps = [
+      ":vr_base",
       "//base",
       "//components/ukm:ukm",
       "//device/base",
@@ -267,7 +287,9 @@ if (enable_vr) {
 
     public_deps = [
       ":vr",
+      ":vr_base",
       "//base",
+      "//device/vr/orientation",
       "//device/vr/public/mojom",
       "//mojo/public/cpp/bindings",
       "//services/device/public/cpp/generic_sensor",

device/vr/android/gvr/gvr_device.h

@@ -12,6 +12,7 @@
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "device/vr/vr_device_base.h"
+#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/receiver.h"
 #include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr_types.h"
 

device/vr/oculus/oculus_device.h

@@ -11,6 +11,7 @@
 #include "base/single_thread_task_runner.h"
 #include "device/vr/public/mojom/vr_service.mojom.h"
 #include "device/vr/vr_device_base.h"
+#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/receiver.h"

device/vr/openxr/openxr_device.h

@@ -10,6 +10,7 @@
 #include "base/macros.h"
 #include "device/vr/public/mojom/vr_service.mojom.h"
 #include "device/vr/vr_device_base.h"
+#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/receiver.h"

device/vr/orientation/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("//device/vr/buildflags/buildflags.gni")
+
+assert(enable_vr)
+
+component("orientation") {
+  output_name = "vr_orientation"
+  defines = [ "IS_VR_ORIENTATION_IMPL" ]
+  sources = [
+    "orientation_device.cc",
+    "orientation_device.h",
+    "orientation_device_provider.cc",
+    "orientation_device_provider.h",
+    "orientation_session.cc",
+    "orientation_session.h",
+  ]
+
+  public_deps = [ "//device/vr/public/cpp" ]
+
+  deps = [
+    "//base",
+    "//device/vr:vr_base",
+    "//mojo/public/cpp/bindings",
+    "//services/device/public/cpp/generic_sensor",
+    "//ui/gfx",
+  ]
+}

device/vr/orientation/orientation_device.h

@@ -8,6 +8,7 @@
 #include <memory>
 
 #include "base/callback_forward.h"
+#include "base/component_export.h"
 #include "base/macros.h"
 #include "base/threading/simple_thread.h"
 #include "build/build_config.h"
@@ -37,7 +38,8 @@ static constexpr mojom::SensorType kOrientationSensorType =
 #endif
 
 // This class connects the orientation sensor events to the Web VR apis.
-class DEVICE_VR_EXPORT VROrientationDevice : public VRDeviceBase,
+class COMPONENT_EXPORT(VR_ORIENTATION) VROrientationDevice
+    : public VRDeviceBase,
       public mojom::SensorClient {
  public:
   VROrientationDevice(mojom::SensorProvider* sensor_provider,

device/vr/orientation/orientation_device_provider.h

@@ -8,17 +8,18 @@
 #include <memory>
 
 #include "base/callback_forward.h"
+#include "base/component_export.h"
 #include "base/macros.h"
 #include "device/vr/orientation/orientation_device.h"
 #include "device/vr/public/cpp/vr_device_provider.h"
-#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/remote.h"
 #include "services/device/public/mojom/sensor_provider.mojom.h"
 
 namespace device {
 
-class DEVICE_VR_EXPORT VROrientationDeviceProvider : public VRDeviceProvider {
+class COMPONENT_EXPORT(VR_ORIENTATION) VROrientationDeviceProvider
+    : public VRDeviceProvider {
  public:
   explicit VROrientationDeviceProvider(
       mojo::PendingRemote<device::mojom::SensorProvider> sensor_provider);

device/vr/orientation/orientation_session.h

@@ -7,17 +7,15 @@
 
 #include <memory>
 
+#include "base/component_export.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "device/vr/public/mojom/isolated_xr_service.mojom.h"
 #include "device/vr/public/mojom/vr_service.mojom.h"
-#include "device/vr/vr_device.h"
-#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/pending_associated_receiver.h"
 #include "mojo/public/cpp/bindings/pending_associated_remote.h"
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/receiver.h"
-#include "ui/display/display.h"
 
 namespace device {
 
@@ -27,7 +25,7 @@ class VROrientationDevice;
 // that exposes device orientation sensors.
 // VROrientationSession objects are owned by their respective
 // VROrientationDevice instances.
-class DEVICE_VR_EXPORT VROrientationSession
+class COMPONENT_EXPORT(VR_ORIENTATION) VROrientationSession
     : public mojom::XRFrameDataProvider,
       public mojom::XRSessionController {
  public:

device/vr/vr_device.h

@@ -6,10 +6,10 @@
 #define DEVICE_VR_VR_DEVICE_H
 
 #include "base/callback.h"
+#include "base/component_export.h"
 #include "base/macros.h"
 #include "device/vr/public/mojom/isolated_xr_service.mojom.h"
 #include "device/vr/public/mojom/vr_service.mojom.h"
-#include "device/vr/vr_export.h"
 
 namespace device {
 
@@ -29,8 +29,8 @@ enum class VrViewerType {
   OPENXR_UNKNOWN = 70,                 // Going through OpenXR APIs
 };
 
-void LogViewerType(VrViewerType);  // Implemented in vr_device_base.cc
-
+// Implemented in vr_device_base.cc
+void COMPONENT_EXPORT(DEVICE_VR_BASE) LogViewerType(VrViewerType);
 }  // namespace device
 
 #endif  // DEVICE_VR_VR_DEVICE_H

device/vr/vr_device_base.h

@@ -9,22 +9,20 @@
 #include <vector>
 
 #include "base/callback.h"
+#include "base/component_export.h"
 #include "base/macros.h"
 #include "device/vr/public/mojom/vr_service.mojom.h"
 #include "device/vr/vr_device.h"
-#include "device/vr/vr_export.h"
 #include "mojo/public/cpp/bindings/associated_remote.h"
 #include "mojo/public/cpp/bindings/pending_associated_remote.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/receiver.h"
-#include "ui/display/display.h"
 
 namespace device {
 
 // Represents one of the platform's VR devices. Owned by the respective
 // VRDeviceProvider.
-// TODO(mthiesse, crbug.com/769373): Remove DEVICE_VR_EXPORT.
-class DEVICE_VR_EXPORT VRDeviceBase : public mojom::XRRuntime {
+class COMPONENT_EXPORT(DEVICE_VR_BASE) VRDeviceBase : public mojom::XRRuntime {
  public:
   explicit VRDeviceBase(mojom::XRDeviceId id);
   ~VRDeviceBase() override;