d7e15e8403
Currently, impression cap is not applied for counterfactual control campaigns as there are no UI action performer triggered. This cause a side effect of imbalance between the experiment group and counterfactual control group. This CL records impression event for counterfactual control campaigns so that the behavior will align with experiment groups. Bug: 387356471 Change-Id: I2b81cbca5b5b05d0ae243a4a28b675e05eb44856 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6120527 Commit-Queue: Li Lin <llin@chromium.org> Reviewed-by: Tao Wu <wutao@chromium.org> Cr-Commit-Position: refs/heads/main@{#1401884}
Chrome OS
This directory contains low-level support for Chrome running on Chrome OS.
The Lacros project is in the process of extracting the browser-functionality into a separate binary. This introduces the following terminology and rules:
- ash-chrome: The new name of the legacy "chrome" binary. It contains system UI and the current/legacy web browser. Code that is only used by ash-chrome should eventually be moved to //chromeos/ash, have an _ash suffix in the filename, or have a (grand-)parent directory named /ash/.
- lacros-chrome: The name of the new, standalone web-browser binary. Code that is only used by lacros-chrome should have a _lacros suffix in the filename, or have a (grand-)parent directory named /lacros/.
- crosapi: The term "crosapi" is short for ChromeOS API. Ash-chrome implements the API, and lacros-chrome is the only consumer.
- chromeos: The term "chromeos" refers to code that is shared by binaries targeting the chromeos platform or using the chromeos toolchain. Code that is shared by ash-chrome and lacros-chrome should have a _chromeos suffix in the filename, or have a (grand-)parent directory named /chromeos/.
- Exception: The exception to the rule is //chrome/browser/chromeos. Following existing conventions in //chrome, the directory should refer to lacros-chrome. However, this would involve a massive and otherwise unnecessary refactor. //chrome/browser/chromeos will continue to contain code that is only used by ash-chrome. //chrome/browser/lacros will contain code used only by lacros-chrome. See this document for more details.
Many subdirectories contain Chrome-style C++ wrappers around operating system components.
For example, //chromeos/dbus contains wrappers around the D-Bus interfaces to system daemons like the network configuration manager (shill). Most other directories contain low-level utility code.
There are two exceptions:
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//chromeos/services contains mojo services that were not considered sufficiently general to live in top-level //services and that, at the same time, are shared between ash-chrome and lacros-chrome. In case of an ash-chrome only mojo service, please use //chromeos/ash/services instead.
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//chromeos/components contains C++ components that were not considered sufficiently general to live in top-level //components.
Note, //chromeos does not contain any user-facing UI code, and hence it has "-ui" in its DEPS. The contents of //chromeos should also not depend on //chrome.