From 396989e0d12dc5521a21661cd60a18999f62cece Mon Sep 17 00:00:00 2001
From: Phil Ringnalda <philringnalda@gmail.com>
Date: Thu, 7 Feb 2013 21:35:08 -0800
Subject: [PATCH] Back out 6a5dcf166f09 (bug 836072) for build bustage CLOSED
 TREE

---
 content/media/AudioEventTimeline.h            | 61 -------------------
 .../compiledtest/TestAudioEventTimeline.cpp   | 35 -----------
 2 files changed, 96 deletions(-)

diff --git a/content/media/AudioEventTimeline.h b/content/media/AudioEventTimeline.h
index a3c6354f6519..4b49ebf9becd 100644
--- a/content/media/AudioEventTimeline.h
+++ b/content/media/AudioEventTimeline.h
@@ -294,47 +294,6 @@ public:
   }
 
 private:
-  const Event* GetPreviousEvent(double aTime) const
-  {
-    const Event* previous = nullptr;
-    const Event* next = nullptr;
-
-    bool bailOut = false;
-    for (unsigned i = 0; !bailOut && i < mEvents.Length(); ++i) {
-      switch (mEvents[i].mType) {
-      case Event::SetValue:
-      case Event::SetTarget:
-      case Event::LinearRamp:
-      case Event::ExponentialRamp:
-        if (aTime == mEvents[i].mTime) {
-          // Find the last event with the same time
-          do {
-            ++i;
-          } while (i < mEvents.Length() &&
-                   aTime == mEvents[i].mTime);
-          return &mEvents[i - 1];
-        }
-        previous = next;
-        next = &mEvents[i];
-        if (aTime < mEvents[i].mTime) {
-          bailOut = true;
-        }
-        break;
-      case Event::SetValueCurve:
-        // TODO: implement
-        break;
-      default:
-        MOZ_ASSERT(false, "unreached");
-      }
-    }
-    // Handle the case where the time is past all of the events
-    if (!bailOut) {
-      previous = next;
-    }
-
-    return previous;
-  }
-
   void InsertEvent(const Event& aEvent, ErrorResult& aRv)
   {
     if (!aEvent.IsValid()) {
@@ -365,26 +324,6 @@ private:
       }
     }
 
-    // Make sure that invalid values are not used for exponential curves
-    if (aEvent.mType == Event::ExponentialRamp) {
-      if (aEvent.mValue <= 0.f) {
-        aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
-        return;
-      }
-      const Event* previousEvent = GetPreviousEvent(aEvent.mTime);
-      if (previousEvent) {
-        if (previousEvent->mValue <= 0.f) {
-          aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
-          return;
-        }
-      } else {
-        if (mValue <= 0.f) {
-          aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
-          return;
-        }
-      }
-    }
-
     for (unsigned i = 0; i < mEvents.Length(); ++i) {
       if (aEvent.mTime == mEvents[i].mTime) {
         if (aEvent.mType == mEvents[i].mType) {
diff --git a/content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp b/content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp
index b3b3399baaa3..24fb976e759a 100644
--- a/content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp
+++ b/content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp
@@ -70,12 +70,6 @@ public:
     return mRv;
   }
 
-  ErrorResultMock& operator=(nsresult aRv)
-  {
-    mRv = aRv;
-    return *this;
-  }
-
 private:
   nsresult mRv;
 };
@@ -160,8 +154,6 @@ void TestInvalidEvents()
   is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
   timeline.ExponentialRampToValueAtTime(-Infinity, 0.4, rv);
   is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
-  timeline.ExponentialRampToValueAtTime(0, 0.5, rv);
-  is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
   timeline.SetTargetAtTime(NaN, 0.4, 1.0, rv);
   is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
   timeline.SetTargetAtTime(Infinity, 0.4, 1.0, rv);
@@ -324,32 +316,6 @@ void TestSetTargetZeroTimeConstant()
   is(timeline.GetValueAtTime(10.f), 20.f, "Should get the correct value with timeConstant == 0");
 }
 
-void TestExponentialInvalidPreviousZeroValue()
-{
-  Timeline timeline(0.f);
-
-  ErrorResultMock rv;
-
-  timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv);
-  is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
-  timeline.SetValue(1.f);
-  rv = NS_OK;
-  timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv);
-  is(rv, NS_OK, "Should succeed this time");
-  timeline.CancelScheduledValues(0.0);
-  is(timeline.GetEventCount(), 0, "Should have no events scheduled");
-  rv = NS_OK;
-  timeline.SetValueAtTime(0.f, 0.5, rv);
-  is(rv, NS_OK, "Should succeed");
-  timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv);
-  is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
-  timeline.CancelScheduledValues(0.0);
-  is(timeline.GetEventCount(), 0, "Should have no events scheduled");
-  rv = NS_OK;
-  timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv);
-  is(rv, NS_OK, "Should succeed this time");
-}
-
 int main()
 {
   ScopedXPCOM xpcom("TestAudioEventTimeline");
@@ -371,7 +337,6 @@ int main()
   TestLinearRampAtSameTime();
   TestExponentialRampAtSameTime();
   TestSetTargetZeroTimeConstant();
-  TestExponentialInvalidPreviousZeroValue();
 
   return gFailCount > 0;
 }