Reland "NavigationThrottleRunner2: content::NavigationThrottleRegistry"

This is a reland of commit 06e076907244efc5fae5abe219b326238889071d

The original change below didn't handle a chromecast specific subclass,
and it caused a build failure on chromecast bot.

Original change's description:
> NavigationThrottleRunner2: content::NavigationThrottleRegistry
>
> This CL introduces a NavigationThrottleRegistry.
> CreateThrottlesForNavigation() is changed to use this interface to
> register a NavigationThrottle for a new navigation.
>
> We still handle the returned throttles vector to keep the legacy
> interface available. But, once all the existing NavigationThrottle are
> migrated to use the NavigationThrottleRegistry, we will remove the
> legacy way, and the signature will be changed to return void.
>
> With this interface, we can implement several optimization step by step
> without changing the existing API signature further more. For instance,
> we can provide following features via the new registry interface;
> - fast access paths to check navigation attributes
> - per-event registration to optimize event loops
>
> Eventually, I will introduce a new NavigationThrottleRunner class. As we
> want to share some common implementation among the original runner and
> the new runner during the experiment, I will move the common logic to
> this registry class and both runners will own it to share the
> implementation.
>
> Essential changes are in the NavigationThrottleRunner, and
> //content/public. Others are call side mechanical changes.
>
> Bug: 412524375
> Change-Id: Ifda11e0f5cf446135c9ab34df025573346c7639c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6478853
> Reviewed-by: Nate Fischer <[email protected]>
> Auto-Submit: Takashi Toyoshima <[email protected]>
> Commit-Queue: Takashi Toyoshima <[email protected]>
> Reviewed-by: Alex Moshchuk <[email protected]>
> Cr-Commit-Position: refs/heads/main@{#1454542}

Bug: 412524375
Change-Id: Ia2214df9a7b7bc2fc3cdde9d3570b90f52195ffd
Cq-Include-Trybots: luci.chromium.try:android-cast-arm64-dbg
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6506662
Reviewed-by: David Dorwin <[email protected]>
Reviewed-by: Nate Fischer <[email protected]>
Reviewed-by: Alex Moshchuk <[email protected]>
Reviewed-by: Devlin Cronin <[email protected]>
Reviewed-by: Andrey Kosyakov <[email protected]>
Reviewed-by: Simeon Anfinrud <[email protected]>
Commit-Queue: Simeon Anfinrud <[email protected]>
Auto-Submit: Takashi Toyoshima <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1455091}

• android_webview/browser/aw_content_browser_client.cc[diff]
• android_webview/browser/aw_content_browser_client.h[diff]
• chrome/browser/chrome_content_browser_client.cc[diff]
• chrome/browser/chrome_content_browser_client.h[diff]
• chrome/browser/extensions/extension_navigation_throttle_unittest.cc[diff]
• chromecast/browser/cast_content_browser_client.cc[diff]
• chromecast/browser/cast_content_browser_client.h[diff]
• components/page_load_metrics/browser/page_load_metrics_test_content_browser_client.cc[diff]
• components/page_load_metrics/browser/page_load_metrics_test_content_browser_client.h[diff]
• content/browser/renderer_host/navigation_request_unittest.cc[diff]
• content/browser/renderer_host/navigation_throttle_runner.cc[diff]
• content/browser/renderer_host/navigation_throttle_runner.h[diff]
• content/browser/renderer_host/navigation_throttle_runner_unittest.cc[diff]
• content/browser/renderer_host/navigator_delegate.h[diff]
• content/browser/web_contents/web_contents_impl.cc[diff]
• content/browser/web_contents/web_contents_impl.h[diff]
• content/public/browser/BUILD.gn[diff]
• content/public/browser/content_browser_client.cc[diff]
• content/public/browser/content_browser_client.h[diff]
• content/public/browser/navigation_throttle_registry.h[Added - diff]
• content/shell/browser/shell_content_browser_client.cc[diff]
• content/shell/browser/shell_content_browser_client.h[diff]
• content/web_test/browser/web_test_content_browser_client.cc[diff]
• content/web_test/browser/web_test_content_browser_client.h[diff]
• extensions/shell/browser/shell_content_browser_client.cc[diff]
• extensions/shell/browser/shell_content_browser_client.h[diff]
• fuchsia_web/webengine/browser/web_engine_content_browser_client.cc[diff]
• fuchsia_web/webengine/browser/web_engine_content_browser_client.h[diff]
• headless/lib/browser/headless_content_browser_client.cc[diff]
• headless/lib/browser/headless_content_browser_client.h[diff]