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Replace ReadOnlySharedMemoryRegion with WritableSharedMemoryRegion (see #3502)

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Write access to the shared memory region is required because JavaScript lacks
the capability to create read-only ArrayBuffers. When a user attempts to modify
an ArrayBuffer that utilizes a ReadOnlySharedMemoryRegion as its BackingStore
it triggers an access violation.

Note that this pull request may be reverted in the future if JavaScript adds
read-only ArrayBuffer support.
This commit is contained in:
Nik Pavlov
2023-10-16 22:43:29 +00:00
committed by Marshall Greenblatt
parent f3e92b45fc
commit 8d7001adc3
16 changed files with 81 additions and 42 deletions
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2
libcef/browser/frame_host_impl.h
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@@ -138,7 +138,7 @@ class CefFrameHostImpl : public CefFrame, public cef::mojom::BrowserFrame {
void SendMessage(const std::string& name,
base::Value::List arguments) override;
void SendSharedMemoryRegion(const std::string& name,
base::ReadOnlySharedMemoryRegion region) override;
base::WritableSharedMemoryRegion region) override;
void FrameAttached(mojo::PendingRemote<cef::mojom::RenderFrame> render_frame,
bool reattached) override;
void UpdateDraggableRegions(