***
Bug 1514594: Part 3a - Change ChromeUtils.import to return an exports object; not pollute global. r=mccr8
This changes the behavior of ChromeUtils.import() to return an exports object,
rather than a module global, in all cases except when `null` is passed as a
second argument, and changes the default behavior not to pollute the global
scope with the module's exports. Thus, the following code written for the old
model:
ChromeUtils.import("resource://gre/modules/Services.jsm");
is approximately the same as the following, in the new model:
var {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
Since the two behaviors are mutually incompatible, this patch will land with a
scripted rewrite to update all existing callers to use the new model rather
than the old.
***
Bug 1514594: Part 3b - Mass rewrite all JS code to use the new ChromeUtils.import API. rs=Gijs
This was done using the followng script:
https://bitbucket.org/kmaglione/m-c-rewrites/src/tip/processors/cu-import-exports.jsm
***
Bug 1514594: Part 3c - Update ESLint plugin for ChromeUtils.import API changes. r=Standard8
Differential Revision: https://phabricator.services.mozilla.com/D16747
***
Bug 1514594: Part 3d - Remove/fix hundreds of duplicate imports from sync tests. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16748
***
Bug 1514594: Part 3e - Remove no-op ChromeUtils.import() calls. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16749
***
Bug 1514594: Part 3f.1 - Cleanup various test corner cases after mass rewrite. r=Gijs
***
Bug 1514594: Part 3f.2 - Cleanup various non-test corner cases after mass rewrite. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D16750
Before this change, we accessed the browser URL in the following ways:
- "chrome://browser/content/browser.xul"
- "chrome://browser/content/" (which redirects to chrome://browser/content/browser.xul)
- Services.prefs.getCharPref("browser.chromeURL") which returns "chrome://browser/content/"
- getBrowserURL() from utilityOverlay.js
MozReview-Commit-ID: I5vtRke1x9t
NOTE: The '__SSi' and '__SS_lastSessionWindowID' properties on windows are kept,
because they are expected to stick around longer during application shutdown.
The benefits is are:
1. Cleaner code - Sessionstore implementation details are not leaked outside its
module.
2. Observing the lifetime of objects becomes unnecessary, because the WeakMaps are
cleaned up when objects are GC'd, making leakage of their references impossible
and Sessionstore can't hold objects hostage anymore.
3. Simplification - all state is now maintained in SessionStore.jsm, which allows
for additional refactoring later on to simplify the implementation further.
MozReview-Commit-ID: C1II8qHkQ6F
This patch includes:
- (By Yoric) Don't collect/save the session when the user is idle;r=mdeboer
- Add a test for the behavior of state writing in idle/active mode
When the user is not actively using the computer, webpages may still
perform changes that require (re)writing to sessionstore, e.g. updating
Session Cookies or DOM Session Storage, or refreshing, etc. Before
this patch, a single active page can require us to
recollect/serialize/write the entire Session Restore file every 15
seconds even when the user is not in front of the computer.
We expect that, when the user is not in front of the computer, changes
are not critical and don't need to be saved as often. We now adopt the
following strategy:
- when the user has been away for (by default) 15 seconds, finish any
pending collect/write, then increase the collect/write buffering
delay to (by default) 1h
- when the user returns, reschedule any pending 1h collect/write as a
(by default) 15 seconds collect/write, then proceed with (by
default) 15 seconds collect/write delays.
