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Bug 1335303 - Explicitly set up the bool var cache for BrowserFramesEnabled. r=smaug

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This commit is contained in:
Bobby Holley
2017-02-02 14:26:39 -08:00
parent dbb8cff5e0
commit 61f116d30c
4 changed files with 23 additions and 9 deletions
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28
dom/html/nsGenericHTMLFrameElement.cpp
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@@ -453,18 +453,28 @@ nsGenericHTMLFrameElement::IsHTMLFocusable(bool aWithMouse,
return false;
}
static bool sMozBrowserFramesEnabled = false;
#ifdef DEBUG
static bool sBoolVarCacheInitialized = false;
#endif
void
nsGenericHTMLFrameElement::InitStatics()
{
MOZ_ASSERT(!sBoolVarCacheInitialized);
MOZ_ASSERT(NS_IsMainThread());
Preferences::AddBoolVarCache(&sMozBrowserFramesEnabled,
"dom.mozBrowserFramesEnabled");
#ifdef DEBUG
sBoolVarCacheInitialized = true;
#endif
}
bool
nsGenericHTMLFrameElement::BrowserFramesEnabled()
{
static bool sMozBrowserFramesEnabled = false;
static bool sBoolVarCacheInitialized = false;
if (!sBoolVarCacheInitialized) {
sBoolVarCacheInitialized = true;
Preferences::AddBoolVarCache(&sMozBrowserFramesEnabled,
"dom.mozBrowserFramesEnabled");
}
MOZ_ASSERT(sBoolVarCacheInitialized);
return sMozBrowserFramesEnabled;
}