Convert SharedBitmap to SharedImage for Canvas

This CL replaces SharedBitmap with SharedImage in CanvasResourceSharedBitmap.

1. Add new classes WebGraphicsSharedImageInterfaceProvider,
   WebGraphicsSharedImageInterfaceProviderImpl..
2. RendererBlinkPlatformImpl creates GpuChannelHost,
   ClientSharedImageInterface, and then
   WebGraphicsSharedImageInterfaceProvider for SharedGpuContext.
3. In the software rending mode, SharedGpuContext creates and provides
   OffscreenCanvas with WebGraphicsSharedImageInterfaceProvider
   which is later used for creating ClientSharedImage for
   CanvasResourceSharedBitmap.
4. WebGraphicsSharedImageInterfaceProviderImpl observes GpuChannelLost
   and destroys ClientSharedImageInterface in the event of lost.

The feature is behind the flag CanvasSharedBitmapToSharedImage and is
disabled by default.

Bug: 40064122
Change-Id: I081bc0723eb666706046618885809db21ee088f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5490840
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org>
Commit-Queue: Maggie Chen <magchen@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1333200}