Introduce a dedicated Compositor IPC channel between the UI process and WebContent. Use it for backing-store setup, presented bitmap delivery, and bitmap-specific ready_to_paint acknowledgements. This makes CompositorThread the single owner of frame presentation bookkeeping before async scrolling starts producing frames without the main thread. Remove old paint and backing-store messages from WebContentClient and PageClient so the UI process no longer observes two presentation protocols. |
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| .. | ||
| ImageDecoder | ||
| RequestServer | ||
| WebContent | ||
| WebDriver | ||
| WebWorker | ||
| CMakeLists.txt | ||