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Bug 701361 - Add a telemetry probe for finding out how commonly multipart XHR is used on the Web. r=smaug.

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This commit is contained in:
Henri Sivonen 2012-03-28 10:33:18 +03:00
parent dc49de08a7
commit 2e0882cfe2
2 changed files with 4 additions and 0 deletions
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3
content/base/src/nsXMLHttpRequest.cpp
View File

@ -2768,10 +2768,13 @@ nsXMLHttpRequest::Send(nsIVariant *aBody)
// Create our listener
nsCOMPtr<nsIStreamListener> listener = this;
if (mState & XML_HTTP_REQUEST_MULTIPART) {
Telemetry::Accumulate(Telemetry::MULTIPART_XHR_RESPONSE, 1);
listener = new nsMultipartProxyListener(listener);
if (!listener) {
return NS_ERROR_OUT_OF_MEMORY;
}
} else {
Telemetry::Accumulate(Telemetry::MULTIPART_XHR_RESPONSE, 0);
}
// Blocking gets are common enough out of XHR that we should mark

1
toolkit/components/telemetry/TelemetryHistograms.h
View File

@ -391,6 +391,7 @@ HISTOGRAM(HTML_FOREGROUND_REFLOW_MS, 1, 3000, 10, EXPONENTIAL, "HTML reflows in
HISTOGRAM(HTML_BACKGROUND_REFLOW_MS, 1, 3000, 10, EXPONENTIAL, "HTML reflows in background windows (ms)")
HISTOGRAM(XUL_INITIAL_FRAME_CONSTRUCTION, 1, 3000, 10, EXPONENTIAL, "initial xul frame construction")
HISTOGRAM_BOOLEAN(XMLHTTPREQUEST_ASYNC_OR_SYNC, "Type of XMLHttpRequest, async or sync")
HISTOGRAM_BOOLEAN(MULTIPART_XHR_RESPONSE, "XMLHttpRequest response was of type multipart/x-mixed-replace.")
/**
* DOM telemetry.