
blink::WebURLRequest is used for the argument of URLLoaderThrottleProvider::CreateThrottles() method after [1]. But we are planing to call this method from the background thread where we don't use blink::WebURLRequest [2]. Also we are planing to deprecate blink::WebURLRequest, and planing to use network::ResourceRequest instead [3]. So this CL changes the argument type of CreateThrottles() from blink::WebURLRequest to network::ResourceRequest. A network::ResourceRequest is created in ResourceLoader::Start(). So we pass the reference of the structure through ResourceFetcher:: CreateURLLoader(). In frames: ResourceLoader::Start() -> ResourceFetcher::CreateURLLoader() -> LoaderFactoryForFrame::CreateURLLoader() |-> URLLoaderThrottleProvider::CreateThrottles() |-> ServiceWorkerNetworkProviderForFrame:: | GetSubresourceLoaderFactory() |-> URLLoaderFactory::CreateURLLoader() In workers: ResourceLoader::Start() -> ResourceFetcher::CreateURLLoader() -> LoaderFactoryForWorker::CreateURLLoader() |-> WebWorkerFetchContext::CreateThrottles() | -> WebServiceWorkerFetchContextImpl::CreateThrottles() or | DedicatedOrSharedWorkerFetchContextImpl::CreateThrottles() | -> URLLoaderThrottleProvider::CreateThrottles() |-> URLLoaderFactory::CreateURLLoader() mojom::blink::RequestContextType in blink::WebURLRequest is checked in the code path. But this type member is not in network::ResourceRequest. network::ResourceRequest has a network::mojom::RequestDestination member. And some of these checks of mojom::blink::RequestContextType can be safely converted to network::mojom::RequestDestination without any behavior change. But the check in ResourceFetcher::CreateURLLoader() needs the mojom::blink::RequestContextType. Also we need to pass `service_worker_race_network_request_token` to LoaderFactoryForWorker::CreateURLLoader(), and `is_from_origin_dirty_style_sheet` flag to ServiceWorkerNetworkProviderForFrame::GetSubresourceLoaderFactory(). So this CL adds these three arguments to CreateURLLoader() methods. [1]: https://crrev.com/c/994152 [2]: https://crrev.com/c/5113665 [3]: https://groups.google.com/a/chromium.org/forum/#!topic/platform-architecture-dev/ntSzerId4gw Bug: 1379780 Change-Id: I6e0a987d779b1fb428a4b27b813b3f53f2d1d781 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5121813 Reviewed-by: Erik Chen <erikchen@chromium.org> Reviewed-by: Kouhei Ueno <kouhei@chromium.org> Reviewed-by: danakj <danakj@chromium.org> Reviewed-by: Sean Topping <seantopping@chromium.org> Reviewed-by: Richard (Torne) Coles <torne@chromium.org> Commit-Queue: Tsuyoshi Horo <horo@chromium.org> Reviewed-by: David Song <wintermelons@google.com> Reviewed-by: Kentaro Hara <haraken@chromium.org> Reviewed-by: Devlin Cronin <rdevlin.cronin@chromium.org> Cr-Commit-Position: refs/heads/main@{#1245656}
fuchsia.web
- Fuchsia WebEngine and Runners
This directory contains code related to the
fuchsia.web
FIDL API.
Specifically, it contains the implementation of Fuchsia WebEngine and code
related to it, including the Runners that use it. Code in this
directory must not be used outside it and its subdirectories.
General information about Chromium on Fuchsia is here.
[TOC]
Code organization
Each of the following subdirectories contain code for a specific Fuchsia service:
./common
contains code shared by both WebEngine and Runners../runners
contains implementations of Fuchsiasys.runner
../runners/cast
Enables the Fuchsia system to launch Cast applications.
./shell
contains WebEngineShell, a simple wrapper for launching URLs in WebEngine from the command line../webengine
contains the WebEngine implementation. WebEngine is an implementation offuchsia.web
that enables Fuchsia Components to render web content using Chrome's Content layer../webinstance_host
contains code for WebEngine clients to directly instantiate a WebInstance Component (web_instance.cm
) using the WebEngine package.
Test code
There are 3 major types of tests within this directory:
- Unit tests: Exercise a single class in isolation, allowing full control over the external environment of this class.
- Browser tests: Spawn a full browser process and its child processes. The test code is run inside the browser process, allowing for full access to the browser code - but not other processes.
- Integration tests: Exercise the published FIDL API of a Fuchsia Component. For
instance,
//fuchsia_web/webengine:web_engine_integration_tests
make use of the//fuchsia_web/webengine:web_engine
component. The test code runs in a separate process in a separate Fuchsia Component, allowing only access to the published API of the component under test.
Integration tests are more resource-intensive than browser tests, which are in turn more expensive than unit tests. Therefore, when writing new tests, it is preferred to write unit tests over browser tests over integration tests.
As a general rule, test-only code should live in the same directory as the code
under test with an explicit file name, either fake_*
, test_*
,
*_unittest.cc
, *_ browsertest.cc
or *_integration_test.cc
.
Test code that is shared across Components should live in a dedicated ``test
directory. For example, the //fuchsia_web/webengine/test
directory, which
contains code shared by all browser tests, and
//fuchsia_web/common/test
, which contains code shared by tests for both
WebEngine and Runners.