Bug 654369 - Part 7: Remove OOM checks from nsTextFrameThebes r=bz

--HG--
extra : rebase_source : 2cb5ce4d3f3a6d8d0e3a50c40303f8c1c098dbdf

layout/build/nsLayoutStatics.cpp

@@ -183,11 +183,7 @@ nsLayoutStatics::Initialize()
 
   nsCSSRendering::Init();
 
-  rv = nsTextFrameTextRunCache::Init();
-  if (NS_FAILED(rv)) {
-    NS_ERROR("Could not initialize textframe textrun cache");
-    return rv;
-  }
+  nsTextFrameTextRunCache::Init();
 
   rv = nsHTMLDNSPrefetch::Initialize();
   if (NS_FAILED(rv)) {

layout/generic/nsTextFrameTextRunCache.h

@@ -46,7 +46,7 @@
  */
 class nsTextFrameTextRunCache {
 public:
-  static nsresult Init();
+  static void Init();
   static void Shutdown();
 };
 

layout/generic/nsTextFrameThebes.cpp

@@ -592,10 +592,9 @@ MakeTextRun(const PRUint8 *aText, PRUint32 aLength,
     return textRun.forget();
 }
 
-nsresult
+void
 nsTextFrameTextRunCache::Init() {
     gTextRuns = new FrameTextRunCache();
-    return gTextRuns ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
 }
 
 void
@@ -3037,8 +3036,8 @@ public:
 
   NS_DECL_NSITIMERCALLBACK
 
-  static nsresult AddBlinkFrame(nsPresContext* aPresContext, nsIFrame* aFrame);
-  static nsresult RemoveBlinkFrame(nsIFrame* aFrame);
+  static void AddBlinkFrame(nsPresContext* aPresContext, nsIFrame* aFrame);
+  static void RemoveBlinkFrame(nsIFrame* aFrame);
   
   static PRBool   GetBlinkIsOff() { return sState == 3; }
   
@@ -3162,33 +3161,28 @@ NS_IMETHODIMP nsBlinkTimer::Notify(nsITimer *timer)
 
 
 // static
-nsresult nsBlinkTimer::AddBlinkFrame(nsPresContext* aPresContext, nsIFrame* aFrame)
+void nsBlinkTimer::AddBlinkFrame(nsPresContext* aPresContext, nsIFrame* aFrame)
 {
   if (!sTextBlinker)
   {
     sTextBlinker = new nsBlinkTimer;
-    if (!sTextBlinker) return NS_ERROR_OUT_OF_MEMORY;
   }
-  
+
   NS_ADDREF(sTextBlinker);
 
   sTextBlinker->AddFrame(aPresContext, aFrame);
-  return NS_OK;
 }
 
 
 // static
-nsresult nsBlinkTimer::RemoveBlinkFrame(nsIFrame* aFrame)
+void nsBlinkTimer::RemoveBlinkFrame(nsIFrame* aFrame)
 {
   NS_ASSERTION(sTextBlinker, "Should have blink timer here");
-  
+
   nsBlinkTimer* blinkTimer = sTextBlinker;    // copy so we can call NS_RELEASE on it
-  if (!blinkTimer) return NS_OK;
-  
+
   blinkTimer->RemoveFrame(aFrame);  
   NS_RELEASE(blinkTimer);
-  
-  return NS_OK;
 }
 
 //----------------------------------------------------------------------
@@ -7146,12 +7140,10 @@ nsTextFrame::ReflowText(nsLineLayout& aLineLayout, nscoord aAvailableWidth,
        mContentOffset + contentLength <= contentNewLineOffset)) {
     if (!cachedNewlineOffset) {
       cachedNewlineOffset = new NewlineProperty;
-      if (cachedNewlineOffset) {
-        if (NS_FAILED(mContent->SetProperty(nsGkAtoms::newline, cachedNewlineOffset,
-                                            NewlineProperty::Destroy))) {
-          delete cachedNewlineOffset;
-          cachedNewlineOffset = nsnull;
-        }
+      if (NS_FAILED(mContent->SetProperty(nsGkAtoms::newline, cachedNewlineOffset,
+                                          NewlineProperty::Destroy))) {
+        delete cachedNewlineOffset;
+        cachedNewlineOffset = nsnull;
       }
     }
     if (cachedNewlineOffset) {