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Bug 884955 - Add a pref to override NS_EVENT_STARVATION_DELAY_HINT, r=avih

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--HG--
extra : rebase_source : a28f69ab563d513e26056bf418c19eb384efc91a
This commit is contained in:
Olli Pettay 2013-06-19 22:35:32 +03:00
parent 5c8df05170
commit 70fa89eb61
1 changed files with 10 additions and 6 deletions
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16
docshell/base/nsDocShell.cpp
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@ -238,6 +238,7 @@ static uint32_t gValidateOrigin = 0xffffffff;
// Hint for native dispatch of events on how long to delay after
// all documents have loaded in milliseconds before favoring normal
// native event dispatch priorites over performance
// Can be overridden with docshell.event_starvation_delay_hint pref.
#define NS_EVENT_STARVATION_DELAY_HINT 2000
#ifdef PR_LOGGING
@ -251,11 +252,14 @@ const char kBrandBundleURL[] = "chrome://branding/locale/brand.properties";
const char kAppstringsBundleURL[] = "chrome://global/locale/appstrings.properties";
static void
FavorPerformanceHint(bool perfOverStarvation, uint32_t starvationDelay)
FavorPerformanceHint(bool perfOverStarvation)
{
nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID);
if (appShell)
appShell->FavorPerformanceHint(perfOverStarvation, starvationDelay);
if (appShell) {
appShell->FavorPerformanceHint(perfOverStarvation,
Preferences::GetUint("docshell.event_starvation_delay_hint",
NS_EVENT_STARVATION_DELAY_HINT));
}
}
//*****************************************************************************
@ -6672,7 +6676,7 @@ nsDocShell::EndPageLoad(nsIWebProgress * aProgress,
// over performance
if (--gNumberOfDocumentsLoading == 0) {
// Hint to use normal native event dispatch priorities
FavorPerformanceHint(false, NS_EVENT_STARVATION_DELAY_HINT);
FavorPerformanceHint(false);
}
}
/* Check if the httpChannel has any cache-control related response headers,
@ -7679,7 +7683,7 @@ nsDocShell::RestoreFromHistory()
// Tell the event loop to favor plevents over user events, see comments
// in CreateContentViewer.
if (++gNumberOfDocumentsLoading == 1)
FavorPerformanceHint(true, NS_EVENT_STARVATION_DELAY_HINT);
FavorPerformanceHint(true);
if (oldMUDV && newMUDV) {
@ -8077,7 +8081,7 @@ nsDocShell::CreateContentViewer(const char *aContentType,
// Hint to favor performance for the plevent notification mechanism.
// We want the pages to load as fast as possible even if its means
// native messages might be starved.
FavorPerformanceHint(true, NS_EVENT_STARVATION_DELAY_HINT);
FavorPerformanceHint(true);
}
if (onLocationChangeNeeded) {