Add a log module for use by layout. An analog to NS_WARN_IF_FALSE is provided
that has the same behavior as NS_WARN_IF_FALSE: it's debug only and emits a
message prefixed with '[pid] WARNING', includes the condition being checked,
file name and line number.
Destroying large arrays of css::Rules during page teardown can take
multiple milliseconds in incremental CC. To reduce CC pauses, this
patch introduces a new class nsIncrementalClearCOMRuleArray that uses
the deferred finalizer to incrementally destroy these rule arrays.
nsContentUtils::CallOnAllRemoteChildren calls a callback on all tabs
connected to a given window but it has only worked in Firefox e10s tabs.
This patch adds a list of (weak) references to each top-level document's
WindowRoot so that e.g. the nsPresContext can access them instead of
using nsContentUtils. This provides a solution to the problem of finding remote PBrowsers generally.
When connecting a lowdpi external monitor on hidpi mac, TabChild gets an
UpdateDimensions call, followed by a UIResolutionChanged call. After
the UpdateDimensions call, the content process is in an incorrect state
where it has the dimensions of the new display and scale of the old one.
After the UIResolutionChanged message, the values are again consistent.
In the interim, reflow resizes layers based on the incorrect (old) scale
and subsequently uses those incorrect values when the new scale comes
in. This patch normalizes the message parameters by dividing by scale
(the result is what OS X calls point coordinates) so that this doesn't happen.
nsContentUtils::CallOnAllRemoteChildren calls a callback on all tabs
connected to a given window but it has only worked in Firefox e10s tabs.
This patch adds a list of (weak) references to each top-level document's
WindowRoot so that e.g. the nsPresContext can access them instead of
using nsContentUtils. This provides a solution to the problem of finding remote PBrowsers generally.
When connecting a lowdpi external monitor on hidpi mac, TabChild gets an
UpdateDimensions call, followed by a UIResolutionChanged call. After
the UpdateDimensions call, the content process is in an incorrect state
where it has the dimensions of the new display and scale of the old one.
After the UIResolutionChanged message, the values are again consistent.
In the interim, reflow resizes layers based on the incorrect (old) scale
and subsequently uses those incorrect values when the new scale comes
in. This patch normalizes the message parameters by dividing by scale
(the result is what OS X calls point coordinates) so that this doesn't happen.
We should not dispatch an event if it is not safe to run script since
the event handlers might be implemented by Javascript.
To fix this, we always use AsyncEventDispatcher to dispatch the event.
For regular, display list based, hit testing viewport frames never add any items to the display list. So are never "hit". Layer event regions should follow this same path.
The code that this replaces was a partial, incorrect, fix for this problem (from bug 1121033).
