Revert "Adding Chrome-side WebVR interface and Cardboard implementation"

content/browser/vr/android/cardboard/cardboard_vr_device.cc

Index: content/browser/vr/android/cardboard/cardboard_vr_device.cc
diff --git a/content/browser/vr/android/cardboard/cardboard_vr_device.cc b/content/browser/vr/android/cardboard/cardboard_vr_device.cc
deleted file mode 100644
index 11f8505ff63143ef650b6fd3662b58114a06daeb..0000000000000000000000000000000000000000
--- a/content/browser/vr/android/cardboard/cardboard_vr_device.cc
+++ /dev/null
@@ -1,188 +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 "content/browser/vr/android/cardboard/cardboard_vr_device.h"
-
-#include <math.h>
-#include <algorithm>
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_array.h"
-#include "base/android/jni_string.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-#include "jni/CardboardVRDevice_jni.h"
-
-using base::android::AttachCurrentThread;
-
-namespace content {
-
-namespace {
-
-// Source:
-// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/
-VRVector4Ptr MatrixToOrientationQuat(const float m[16]) {
-  VRVector4Ptr out = VRVector4::New();
-  float trace = m[0] + m[5] + m[10];
-  float root;
-  if (trace > 0.0f) {
-    root = sqrtf(1.0f + trace) * 2.0f;
-    out->x = (m[9] - m[6]) / root;
-    out->y = (m[2] - m[8]) / root;
-    out->z = (m[4] - m[1]) / root;
-    out->w = 0.25f * root;
-  } else if ((m[0] > m[5]) && (m[0] > m[10])) {
-    root = sqrtf(1.0f + m[0] - m[5] - m[10]) * 2.0f;
-    out->x = 0.25f * root;
-    out->y = (m[1] + m[4]) / root;
-    out->z = (m[2] + m[8]) / root;
-    out->w = (m[9] - m[6]) / root;
-  } else if (m[5] > m[10]) {
-    root = sqrtf(1.0f + m[5] - m[0] - m[10]) * 2.0f;
-    out->x = (m[1] + m[4]) / root;
-    out->y = 0.25f * root;
-    out->z = (m[6] + m[9]) / root;
-    out->w = (m[2] - m[8]) / root;
-  } else {
-    root = sqrtf(1.0f + m[10] - m[0] - m[5]) * 2.0f;
-    out->x = (m[2] + m[8]) / root;
-    out->y = (m[6] + m[9]) / root;
-    out->z = 0.25f * root;
-    out->w = (m[4] - m[1]) / root;
-  }
-
-  return out.Pass();
-}
-
-}  // namespace
-
-bool CardboardVRDevice::RegisterCardboardVRDevice(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-CardboardVRDevice::CardboardVRDevice(VRDeviceProvider* provider)
-    : VRDevice(provider), frame_index_(0) {
-  j_cardboard_device_.Reset(Java_CardboardVRDevice_create(
-      AttachCurrentThread(), base::android::GetApplicationContext()));
-}
-
-CardboardVRDevice::~CardboardVRDevice() {
-  Java_CardboardVRDevice_stopTracking(AttachCurrentThread(),
-                                      j_cardboard_device_.obj());
-}
-
-VRDeviceInfoPtr CardboardVRDevice::GetVRDevice() {
-  VRDeviceInfoPtr device = VRDeviceInfo::New();
-
-  JNIEnv* env = AttachCurrentThread();
-
-  ScopedJavaLocalRef<jstring> j_device_name =
-      Java_CardboardVRDevice_getDeviceName(env, j_cardboard_device_.obj());
-  device->deviceName =
-      base::android::ConvertJavaStringToUTF8(env, j_device_name.obj());
-
-  ScopedJavaLocalRef<jfloatArray> j_fov(env, env->NewFloatArray(4));
-  Java_CardboardVRDevice_getFieldOfView(env, j_cardboard_device_.obj(),
-                                        j_fov.obj());
-
-  std::vector<float> fov;
-  base::android::JavaFloatArrayToFloatVector(env, j_fov.obj(), &fov);
-
-  device->hmdInfo = VRHMDInfo::New();
-  VRHMDInfoPtr& hmdInfo = device->hmdInfo;
-
-  hmdInfo->leftEye = VREyeParameters::New();
-  hmdInfo->rightEye = VREyeParameters::New();
-  VREyeParametersPtr& leftEye = hmdInfo->leftEye;
-  VREyeParametersPtr& rightEye = hmdInfo->rightEye;
-
-  leftEye->recommendedFieldOfView = VRFieldOfView::New();
-  leftEye->recommendedFieldOfView->upDegrees = fov[0];
-  leftEye->recommendedFieldOfView->downDegrees = fov[1];
-  leftEye->recommendedFieldOfView->leftDegrees = fov[2];
-  leftEye->recommendedFieldOfView->rightDegrees = fov[3];
-
-  // Cardboard devices always assume a mirrored FOV, so this is just the left
-  // eye FOV with the left and right degrees swapped.
-  rightEye->recommendedFieldOfView = VRFieldOfView::New();
-  rightEye->recommendedFieldOfView->upDegrees = fov[0];
-  rightEye->recommendedFieldOfView->downDegrees = fov[1];
-  rightEye->recommendedFieldOfView->leftDegrees = fov[3];
-  rightEye->recommendedFieldOfView->rightDegrees = fov[2];
-
-  // Cardboard does not support configurable FOV.
-  leftEye->maximumFieldOfView = leftEye->recommendedFieldOfView.Clone();
-  rightEye->maximumFieldOfView = rightEye->recommendedFieldOfView.Clone();
-  leftEye->minimumFieldOfView = leftEye->recommendedFieldOfView.Clone();
-  rightEye->minimumFieldOfView = rightEye->recommendedFieldOfView.Clone();
-
-  float ipd = Java_CardboardVRDevice_getIpd(env, j_cardboard_device_.obj());
-
-  leftEye->eyeTranslation = VRVector3::New();
-  leftEye->eyeTranslation->x = ipd * -0.5f;
-  leftEye->eyeTranslation->y = 0.0f;
-  leftEye->eyeTranslation->z = 0.0f;
-
-  rightEye->eyeTranslation = VRVector3::New();
-  rightEye->eyeTranslation->x = ipd * 0.5f;
-  rightEye->eyeTranslation->y = 0.0f;
-  rightEye->eyeTranslation->z = 0.0f;
-
-  ScopedJavaLocalRef<jintArray> j_screen_size(env, env->NewIntArray(2));
-  Java_CardboardVRDevice_getScreenSize(env, j_cardboard_device_.obj(),
-                                       j_screen_size.obj());
-
-  std::vector<int> screen_size;
-  base::android::JavaIntArrayToIntVector(env, j_screen_size.obj(),
-                                         &screen_size);
-
-  leftEye->renderRect = VRRect::New();
-  leftEye->renderRect->x = 0;
-  leftEye->renderRect->y = 0;
-  leftEye->renderRect->width = screen_size[0] / 2.0;
-  leftEye->renderRect->height = screen_size[1];
-
-  rightEye->renderRect = VRRect::New();
-  rightEye->renderRect->x = screen_size[0] / 2.0;
-  rightEye->renderRect->y = 0;
-  rightEye->renderRect->width = screen_size[0] / 2.0;
-  rightEye->renderRect->height = screen_size[1];
-
-  return device.Pass();
-}
-
-VRSensorStatePtr CardboardVRDevice::GetSensorState() {
-  VRSensorStatePtr state = VRSensorState::New();
-
-  state->timestamp = base::Time::Now().ToJsTime();
-  state->frameIndex = frame_index_;
-
-  JNIEnv* env = AttachCurrentThread();
-  ScopedJavaLocalRef<jfloatArray> j_head_matrix(env, env->NewFloatArray(16));
-  Java_CardboardVRDevice_getSensorState(env, j_cardboard_device_.obj(),
-                                        j_head_matrix.obj());
-
-  std::vector<float> head_matrix;
-  base::android::JavaFloatArrayToFloatVector(env, j_head_matrix.obj(),
-                                             &head_matrix);
-
-  state->orientation = MatrixToOrientationQuat(&head_matrix[0]);
-
-  state->position = VRVector3::New();
-  state->position->x = -head_matrix[12];
-  state->position->y = head_matrix[13];
-  state->position->z = head_matrix[14];
-
-  frame_index_++;
-
-  return state.Pass();
-}
-
-void CardboardVRDevice::ResetSensor() {
-  Java_CardboardVRDevice_resetSensor(AttachCurrentThread(),
-                                     j_cardboard_device_.obj());
-}
-
-}  // namespace content