Validate untrusted VR mojo inputs into browser process

chrome/browser/android/vr_shell/vr_shell_gl.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_
 
 #include <chrome/browser/vr/ui_input_manager.h>
 #include <memory>
 #include <queue>
 #include <utility>
 #include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "chrome/browser/android/vr_shell/vr_controller.h"
 #include "chrome/browser/android/vr_shell/vr_controller_model.h"
 #include "device/vr/vr_service.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/WebKit/public/platform/WebInputEvent.h"
 #include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr.h"
 #include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr_types.h"
 #include "ui/gfx/geometry/quaternion.h"
 #include "ui/gfx/geometry/rect_f.h"
+#include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace blink {
 class WebMouseEvent;
 }  // namespace blink
 
 namespace gl {
 class GLContext;
 class GLFence;
 class GLSurface;
@@ skipping 200 matching lines @@
   gfx::Point3F target_point_;
   vr::UiElement* reticle_render_target_ = nullptr;
 
   int content_tex_css_width_ = 0;
   int content_tex_css_height_ = 0;
   gfx::Size content_tex_physical_size_ = {0, 0};
   gfx::Size webvr_surface_size_ = {0, 0};
 
   std::vector<base::TimeTicks> webvr_time_pose_;
   std::vector<base::TimeTicks> webvr_time_js_submit_;
-
+  std::vector<bool> webvr_frame_oustanding_;
   std::vector<gfx::Transform> webvr_head_pose_;
 
   bool web_vr_mode_;
   bool ready_to_draw_ = false;
   bool surfaceless_rendering_;
   bool daydream_support_;
 
   std::unique_ptr<VrController> controller_;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
@@ skipping 28 matching lines @@
   std::unique_ptr<vr::UiInputManager> input_manager_;
 
   base::WeakPtrFactory<VrShellGl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VrShellGl);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_