import changes from wicknix/Arctic-Fox:

- backport of Bug 1188696 - Remove the XPCOM dependencies in nsRefPtr.h (6c2860799)
- backport of Bug 1188696 - Hoist nsRefPtr.h into MFBT (e892acb58)
- Backport of Bug 1138967 - Part 3: Add D3D11 YCbCr texture clients and upload on the client side (2e4218167)
- Bug 1038536 - Flatten image/src/ directory (3adb2d635)
- Bug 1038536 - Flatten image/public/ directory (22329f3b4)
- Bug 1038536 - Flatten image/decoders/icon/qt/public/ directory. (7b5b8b2af)
- Bug 1038536 - Update header guard after flatten image/build (20e1614ac)
- Bug 1116905 - part 2 - add MakeAndAddRef helper function to facilitate constructing TemporaryRef (9c85f45a0)
- update (ab2c6eccf)
- Bug 1139781 - Implement VideoPlaybackQuality for MediaCodecReader. (1a7c6c0a7)
- Bug 1138825 - Fix the crash at mAudioPromise: call decode audio data when the audio queue is empty and check the mAudioPromise is empty or not. (3f5d3a1c5)
- Bug 875247 - Add support for DXVA2 via D3D11 (2ca491206)
- Bug 1145513 - Upload YCbCr image data on the client side when using d3d9 layers. (50f7a69fa)
- Bug 1053563 - Use a static create function to replace InitWith for TextureClient. (dd1c8fc89)
- Bug 1145764 - Add some default-disabled logging to TextureClientPool (1cfc0d1b9)
- Bug 1120780 - Fallback on lock_ycbcr when ColorConvertor fails (3a9b893f0)
- Bug 1161815: Use a single ID2D1SolidColorBrush per DrawTarget. (a70b72ef6)
- Bug 1160485 - remove implicit conversion from RefPtr<T> to TemporaryR…ef<T>; (e6e6224c5)
- Bug 1116905 - part 3 - remove dependence on implicit conversion from T* to TemporaryRef<T>, gfx changes; (f71d3ffa8)
- Bug 1116905 - part 1 - remove dependence on implicit conversion from T* to TemporaryRef<T>, non-gfx changes; (f66714955)
- implement Event.srcElement as alias (6c1ee1c6d)
- 1116905 - part 4 - remove implicit conversion from non-nullptr T* to TemporaryRef<T> (f94c680f9)
- Bug 1031152 - Define a JS public API for working with SavedFrame instances (2aa41721a)
- Update TLD's from ESR 60 (b9dbe0ca3)
with some changes to fix building, reported to upstream:
- https://github.com/wicknix/Arctic-Fox/commit/2e421816773b6a57502907ab22c285d994d8b024#r31893045
- https://github.com/wicknix/Arctic-Fox/commit/50f7a69fa9a36634aef1ae5a221415ca98284435#r31892913
- https://github.com/wicknix/Arctic-Fox/commit/f667149556ae0e64c9dbce08836bb5d957db2464#r31892928

gfx/layers/client/TextureClient.cpp

@@ -389,7 +389,7 @@ TextureClient::CreateForDrawing(ISurfaceAllocator* aAllocator,
   MOZ_ASSERT(!texture || texture->CanExposeDrawTarget(), "texture cannot expose a DrawTarget?");
 
   if (texture && texture->AllocateForSurface(aSize, aAllocFlags)) {
-    return texture;
+    return texture.forget();
   }
 
   if (aAllocFlags & ALLOC_DISALLOW_BUFFERTEXTURECLIENT) {
@@ -407,7 +407,7 @@ TextureClient::CreateForDrawing(ISurfaceAllocator* aAllocator,
     return nullptr;
   }
 
-  return texture;
+  return texture.forget();
 }
 
 // static
@@ -431,7 +431,7 @@ TextureClient::CreateForRawBufferAccess(ISurfaceAllocator* aAllocator,
       return nullptr;
     }
   }
-  return texture;
+  return texture.forget();
 }
 
 // static
@@ -461,7 +461,7 @@ TextureClient::CreateForYCbCr(ISurfaceAllocator* aAllocator,
     return nullptr;
   }
 
-  return texture;
+  return texture.forget();
 }
 
 // static
@@ -486,7 +486,7 @@ TextureClient::CreateWithBufferSize(ISurfaceAllocator* aAllocator,
     return nullptr;
   }
 
-  return texture;
+  return texture.forget();
 }
 
 TextureClient::TextureClient(ISurfaceAllocator* aAllocator, TextureFlags aFlags)
@@ -740,8 +740,7 @@ BufferTextureClient::CreateSimilar(TextureFlags aFlags,
     mAllocator, mFormat, mSize, mBackend, mFlags | aFlags, aAllocFlags
   );
 
-  RefPtr<TextureClient> newTex = newBufferTex.get();
-  return newTex;
+  return newBufferTex.forget();
 }
 
 bool
@@ -928,8 +927,7 @@ SyncObject::CreateSyncObject(SyncHandle aHandle)
   }
 
 #ifdef XP_WIN
-  RefPtr<SyncObject> syncObject = new SyncObjectD3D11(aHandle);
-  return syncObject;
+  return MakeAndAddRef<SyncObjectD3D11>(aHandle);
 #else
   MOZ_ASSERT_UNREACHABLE();
   return nullptr;