commit 2e2bb01ac8c5bf91d61e10777deeb5dc2e32d862
author Tsuyoshi Horo <horo@chromium.org> Thu Aug 15 07:57:29 2024
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Thu Aug 15 07:57:29 2024
tree 6dc336c3d880cc83430f4fb1e43454b310120ef9
parent 5c89327161e96f1082e140a9e3c487d2876661d5

Initial implementation of Rewriter API

This CL partially implements Rewriter API as follows:
  - New flags:
    - "AIRewriterAPI" Blink runtime enabled feature and
      "EnableAIRewriterAPI" base feature.
  - Blink side:
    - AIRewriterFactory interface and AIRewriter interface.
    - AI.rewriter attriute which returns an AIRewriterFactory.
    - `AIRewriterFactory.create()` method:
      - This method accepts an AIRewriterCreateOptions argument which
        can be used to set an AbortSignal, a shared context string, tone
        and length options.
      - This method returns a Promise<AIRewriter>.
      - This method calls a new `AIManager.CreateRewriter()` IPC method
        with the shared context string and a remote Mojo interface of
        AIManagerCreateRewriterClient which receives a AIRewriter mojo
        interface.
    - `AIRewriter.rewrite()/rewriteStreaming()` methods:
      - This method accepts an input string and an
        AIRewriterRewriteOptions argument which can be used to set an
        AbortSignal and a context string.
      - These methods call a new `AIRewriter.rewrite()` IPC method
        with the input string and the context string, and a remote Mojo
        interface of ModelStreamingResponder which receives the resut.
      - The `rewrite()` method returns a Promise<DOMString>.
      - The `rewriteStreaming()` method returns a ReadableStream.
    - AIRewriter.destroy() method:
      - This method resets the mojo AIRewriter interface.
  - //content side:
    - `EchoAIManagerImpl::CreateRewriter()` returns a EchoAIRewriter.
    - `EchoAIRewriter::Rewrite()` echoes the input with a "Model not
      available in Chromium." message.
  - //chrome side:
    - `AIManagerKeyedService::CreateRewriter()` calls NOTIMPLEMENTED().
      This method will be implemented in following CLs.

Fuchsia-Binary-Size: Size increase is unavoidable.
Bug: 358214322
Change-Id: I6ec455e0f445c0552ab9321d6c29194f1ce8fe2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5772131
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Jiacheng Guo <gjc@google.com>
Reviewed-by: Mingyu Lei <leimy@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1342169}