void PageThrottler::reportInterestingEvent()
{
if (m_throttleState == PageNotThrottledState)
return;
if (m_throttleState == PageThrottledState)
unthrottlePage();
m_throttleState = PageWaitingToThrottleState;
startThrottleHysteresisTimer();
}
void PageThrottler::setThrottled(bool isThrottled)
{
if (isThrottled) {
m_throttleState = PageWaitingToThrottleState;
startThrottleHysteresisTimer();
} else {
unthrottlePage();
stopThrottleHysteresisTimer();
}
}
void PageThrottler::allowThrottling()
{
ASSERT(m_activeThrottleBlockers > 0);
m_activeThrottleBlockers--;
if (m_activeThrottleBlockers)
return;
if (m_throttleState == PageNotThrottledState)
return;
ASSERT(m_throttleState == PageWaitingToThrottleState);
startThrottleHysteresisTimer();
}
void PageThrottler::removeActivityToken(PageActivityAssertionToken* token)
{
ASSERT(token && m_activityTokens.contains(token));
m_activityTokens.remove(token);
if (m_activityTokens.size())
return;
if (m_throttleState == PageNotThrottledState)
return;
ASSERT(m_throttleState == PageWaitingToThrottleState);
startThrottleHysteresisTimer();
}
