Add ability to load CreateDirect3DDeviceFromDXGIDevice from d3d11.dll

Creating a Direct3D11Device from a DXGIDevice is necessary for the new
WGC based window capturer. However, the
CreateDirect3DDeviceFromDXGIDevice API is not available on all
versions of Windows, which means we have to load this function from
d3d11.dll at runtime.

You can see how this function will be used in this CL:
196624: Finish implementing WGC Window Capturer and add unit tests. |
https://webrtc-review.googlesource.com/c/src/+/196624

I also ensure we don't leak HSTRINGs in GetActivationFactory and fix
up some includes in ScopedComInitializer.

Bug: webrtc:9273
Change-Id: Ida240b2c0f637d70ec405de7d8f59f0c12aee1f1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196622
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Austin Orion <auorion@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#32984}

rtc_base/BUILD.gn

@@ -126,6 +126,8 @@ rtc_library("rtc_base_approved") {
 
   if (is_win) {
     sources += [
+      "win/create_direct3d_device.cc",
+      "win/create_direct3d_device.h",
       "win/get_activation_factory.cc",
       "win/get_activation_factory.h",
       "win/hstring.cc",

rtc_base/win/create_direct3d_device.cc

@@ -0,0 +1,57 @@
+/*
+ *  Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_base/win/create_direct3d_device.h"
+
+#include <libloaderapi.h>
+#include <utility>
+
+namespace {
+
+FARPROC LoadD3D11Function(const char* function_name) {
+  static HMODULE const handle =
+      ::LoadLibraryExW(L"d3d11.dll", nullptr, LOAD_LIBRARY_SEARCH_SYSTEM32);
+  return handle ? ::GetProcAddress(handle, function_name) : nullptr;
+}
+
+decltype(&::CreateDirect3D11DeviceFromDXGIDevice)
+GetCreateDirect3D11DeviceFromDXGIDevice() {
+  static decltype(&::CreateDirect3D11DeviceFromDXGIDevice) const function =
+      reinterpret_cast<decltype(&::CreateDirect3D11DeviceFromDXGIDevice)>(
+          LoadD3D11Function("CreateDirect3D11DeviceFromDXGIDevice"));
+  return function;
+}
+
+}  // namespace
+
+namespace webrtc {
+
+bool ResolveCoreWinRTDirect3DDelayload() {
+  return GetCreateDirect3D11DeviceFromDXGIDevice();
+}
+
+HRESULT CreateDirect3DDeviceFromDXGIDevice(
+    IDXGIDevice* dxgi_device,
+    ABI::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice**
+        out_d3d11_device) {
+  decltype(&::CreateDirect3D11DeviceFromDXGIDevice) create_d3d11_device_func =
+      GetCreateDirect3D11DeviceFromDXGIDevice();
+  if (!create_d3d11_device_func)
+    return E_FAIL;
+
+  Microsoft::WRL::ComPtr<IInspectable> inspectableSurface;
+  HRESULT hr = create_d3d11_device_func(dxgi_device, &inspectableSurface);
+  if (FAILED(hr))
+    return hr;
+
+  return inspectableSurface->QueryInterface(IID_PPV_ARGS(out_d3d11_device));
+}
+
+}  // namespace webrtc

rtc_base/win/create_direct3d_device.h

@@ -0,0 +1,34 @@
+/*
+ *  Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef RTC_BASE_WIN_CREATE_DIRECT3D_DEVICE_H_
+#define RTC_BASE_WIN_CREATE_DIRECT3D_DEVICE_H_
+
+#include <windows.graphics.capture.interop.h>
+#include <windows.graphics.directX.direct3d11.interop.h>
+#include <winerror.h>
+#include <wrl/client.h>
+
+namespace webrtc {
+
+// Callers must check the return value of ResolveCoreWinRTDirect3DDelayload()
+// before using CreateDirect3DDeviceFromDXGIDevice().
+bool ResolveCoreWinRTDirect3DDelayload();
+
+// Allows for the creating of Direct3D Devices from a DXGI device on versions
+// of Windows greater than Win7.
+HRESULT CreateDirect3DDeviceFromDXGIDevice(
+    IDXGIDevice* dxgi_device,
+    ABI::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice**
+        out_d3d11_device);
+
+}  // namespace webrtc
+
+#endif  // RTC_BASE_WIN_CREATE_DIRECT3D_DEVICE_H_

rtc_base/win/get_activation_factory.h

@@ -40,8 +40,10 @@ HRESULT GetActivationFactory(InterfaceType** factory) {
     return hr;
 
   hr = RoGetActivationFactoryProxy(class_id_hstring, IID_PPV_ARGS(factory));
-  if (FAILED(hr))
+  if (FAILED(hr)) {
+    DeleteHstring(class_id_hstring);
     return hr;
+  }
 
   return DeleteHstring(class_id_hstring);
 }

rtc_base/win/scoped_com_initializer.cc

@@ -10,6 +10,9 @@
 
 #include "rtc_base/win/scoped_com_initializer.h"
 
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+
 namespace webrtc {
 
 ScopedCOMInitializer::ScopedCOMInitializer() {

rtc_base/win/scoped_com_initializer.h

@@ -13,8 +13,6 @@
 
 #include <comdef.h>
 
-#include "rtc_base/logging.h"
-
 namespace webrtc {
 
 // Initializes COM in the constructor (STA or MTA), and uninitializes COM in the