summaryrefslogtreecommitdiffstats
path: root/dom/base/nsDocument.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'dom/base/nsDocument.cpp')
-rw-r--r--dom/base/nsDocument.cpp97
1 files changed, 1 insertions, 96 deletions
diff --git a/dom/base/nsDocument.cpp b/dom/base/nsDocument.cpp
index 8acfd901a..ac9601caf 100644
--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@@ -25,7 +25,6 @@
#include "plstr.h"
#include "mozilla/Sprintf.h"
-#include "mozilla/Telemetry.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsILoadContext.h"
@@ -12370,101 +12369,7 @@ MightBeAboutOrChromeScheme(nsIURI* aURI)
void
nsDocument::ReportUseCounters()
{
- static const bool sDebugUseCounters = false;
- if (mReportedUseCounters) {
- return;
- }
-
- mReportedUseCounters = true;
-
- if (Telemetry::HistogramUseCounterCount > 0 &&
- (IsContentDocument() || IsResourceDoc())) {
- nsCOMPtr<nsIURI> uri;
- NodePrincipal()->GetURI(getter_AddRefs(uri));
- if (!uri || MightBeAboutOrChromeScheme(uri)) {
- return;
- }
-
- if (sDebugUseCounters) {
- nsCString spec = uri->GetSpecOrDefault();
-
- // URIs can be rather long for data documents, so truncate them to
- // some reasonable length.
- spec.Truncate(std::min(128U, spec.Length()));
- printf("-- Use counters for %s --\n", spec.get());
- }
-
- // We keep separate counts for individual documents and top-level
- // pages to more accurately track how many web pages might break if
- // certain features were removed. Consider the case of a single
- // HTML document with several SVG images and/or iframes with
- // sub-documents of their own. If we maintained a single set of use
- // counters and all the sub-documents use a particular feature, then
- // telemetry would indicate that we would be breaking N documents if
- // that feature were removed. Whereas with a document/top-level
- // page split, we can see that N documents would be affected, but
- // only a single web page would be affected.
-
- // The difference between the values of these two histograms and the
- // related use counters below tell us how many pages did *not* use
- // the feature in question. For instance, if we see that a given
- // session has destroyed 30 content documents, but a particular use
- // counter shows only a count of 5, we can infer that the use
- // counter was *not* used in 25 of those 30 documents.
- //
- // We do things this way, rather than accumulating a boolean flag
- // for each use counter, to avoid sending histograms for features
- // that don't get widely used. Doing things in this fashion means
- // smaller telemetry payloads and faster processing on the server
- // side.
- Telemetry::Accumulate(Telemetry::CONTENT_DOCUMENTS_DESTROYED, 1);
- if (IsTopLevelContentDocument()) {
- Telemetry::Accumulate(Telemetry::TOP_LEVEL_CONTENT_DOCUMENTS_DESTROYED, 1);
- }
-
- for (int32_t c = 0;
- c < eUseCounter_Count; ++c) {
- UseCounter uc = static_cast<UseCounter>(c);
-
- Telemetry::ID id =
- static_cast<Telemetry::ID>(Telemetry::HistogramFirstUseCounter + uc * 2);
- bool value = GetUseCounter(uc);
-
- if (value) {
- if (sDebugUseCounters) {
- const char* name = Telemetry::GetHistogramName(id);
- if (name) {
- printf(" %s", name);
- } else {
- printf(" #%d", id);
- }
- printf(": %d\n", value);
- }
-
- Telemetry::Accumulate(id, 1);
- }
-
- if (IsTopLevelContentDocument()) {
- id = static_cast<Telemetry::ID>(Telemetry::HistogramFirstUseCounter +
- uc * 2 + 1);
- value = GetUseCounter(uc) || GetChildDocumentUseCounter(uc);
-
- if (value) {
- if (sDebugUseCounters) {
- const char* name = Telemetry::GetHistogramName(id);
- if (name) {
- printf(" %s", name);
- } else {
- printf(" #%d", id);
- }
- printf(": %d\n", value);
- }
-
- Telemetry::Accumulate(id, 1);
- }
- }
- }
- }
+/* STUB */
}
void