This patch contains two parts below:
1. mNeckoTarget
Since almost all child channels in necko need mNeckoTarget to dispatch runnables to main thread, it seems worth to have a holder class of mNeckoTarget and ask child channels to inherit it.
2. ChannelEvent
A lot of classes in FTPChannelChild and HttpChannelChild inheriting ChannelEvent and override GetEventTarget. It should be worth to extract the same code and put it in the same space.
This removes unnecessary COM overhead from the extension protocol service,
particularly from the flag lookup code, which is called often, and from hot
paths. The devirtualized lookups should have virtually no overhead for
extensions without web-accessible resources, and very little overhead except
when resources are specified as non-prefix globs.
MozReview-Commit-ID: 4hQ7GuQSjvW
--HG--
extra : rebase_source : 61897a204abd915ad61852fa475cde2de51753f3
NotifyTrackingProtectionDisabled/NotifyTrackingResource/SetClassifierMatchedInfo updates tracking protection and safe browsing states from parent to child.
They should at least handled by child process before OnStopRequest. Move them to PHttpBackgroundChannel can ensure that.
MozReview-Commit-ID: 8T6k9z9FgrI
--HG--
extra : rebase_source : fd26e2b4309a31e0a9bb16c9236eb4a1875518dc
OnStartRequestSent is used to ensure the execution order between OnStartRequest and all other messsages sent over PBackground.
IPC messages sent before OnStartRequestSent can be processed immediately while received by content process.
IPC messages sent after OnSartRequestSent need to be pending until OnStartRequestReceived is called.
MozReview-Commit-ID: 5Vbb8SBQmW8
--HG--
extra : rebase_source : 81ddce949d2a658e227e1e67d7d4313f7c66513f
PHttpBackgroundChannel is created by content process because PBackground IPDL
can only be initiated from content process. The background channel deletion is
controlled by chrome process while PHttpChannel is going to be closed or canceled.
BackgroundChannelRegistrar is introduced for pairing HttpChannelParent and
HttpBackgroundChannelParent since they are created over different IPDL
asynchronously.
nsIParentRedirectingChannel.continueVerification is introduced to asynchronously
wait for background channel to be established on the new channel during the
Redirect2Verify phase.
MozReview-Commit-ID: 41l8ivan8iA
--HG--
extra : rebase_source : b8b6d7e7c037efaa9fc13df14191205c603e833a
AsyncOpen procedure can failed and trigger FailedAsyncOpen IPC to do the clean up.
However FailedAsyncOpen might not complete if content process is destroyed at the meantime.
We can delay the timing of holding the strong reference to parent listener and channel object
to make sure no reference cycle is created by HttpChannelParent. In addition, clean up the
strong reference as soon as FailedAsyncOpen IPC is triggered.
MozReview-Commit-ID: LDOt0BpBgFe
--HG--
extra : rebase_source : 38e1128e8c361a2422ec4d8292b591ab3b3ef41f
PHttpBackgroundChannel is introduced to deliver OnStopRequest/OnTransportAndData/OnProgress/OnStatus on background thread.
FlushedForDiversion/DivertMessages is moved to PHttpBackgroundChannel to ensure no more channel event are delivered after these two messages on the background channel.
OnStartRequestSent is introduced to synchronize the execution order between OnStartRequest (main thread IPC) and all other messages on PHttpBackgroundChannel.
MozReview-Commit-ID: HfqvPML6EKw
--HG--
extra : rebase_source : 423709763e1abf1362347bc2d3141e2d33aed46a
When the last request is removed from the load group, we report telemetry for the default load request. This was done without checking if the request was successful, which may cause us to report telemetry for failed requests as well.
Also, the NullHttpChannel had its timingEnabled attribute set to true, which could lead us to report invalid telemetry
MozReview-Commit-ID: 5w7rd2V17Xd
--HG--
extra : rebase_source : 60785ebc38da8880aa6ded668fed8af81c3d60e9
1. Use ScopeExit to ensure mListener->OnStartRequest() is invoked before exit CallOnStartRequest.
2. Add assertion to ensure OnStartRequest called before OnStopRequest.
MozReview-Commit-ID: FgONlk5HPNz
--HG--
extra : rebase_source : ffe386bc8bea6defb216ecf149a29deacdb3737a
UAOverridesBootstrapper.js is introduced to delay the initialization of
UserAgentOverrides.jsm until the creation of the first nsHttpChannel.
Uninit will be triggered at profile-change-net-teardown because no network
traffice after this point.
MozReview-Commit-ID: F8Lpn6RyZEm
--HG--
extra : rebase_source : 7c3649b50ad8594dc0968961fbbd2766d0d98b0a
system-info might need to be construct while creating nsHttpHandler and it might take up to 30ms.
Lazy loading the DEFAULT_UA can delay the creation of nsHttpHandler after start-up.
MozReview-Commit-ID: FtIpKjcY38r
--HG--
extra : rebase_source : 8061ed3ce6c42955e52f494166958f5b63ab940b
This function is arguably nicer than calling NS_ProcessNextEvent
manually, is slightly more efficient, and will enable better auditing
for NS_ProcessNextEvent when we do Quantum DOM scheduling changes.