Bug 1361499 - Initialize nsIFrame::mState in the ctor to avoid Coverity warnings. r=jfkthame

MozReview-Commit-ID: 8ly3NZMbuQ8

layout/generic/nsFrame.cpp

@@ -457,7 +457,6 @@ nsFrame::nsFrame(nsStyleContext* aContext, LayoutFrameType aType)
 {
   MOZ_COUNT_CTOR(nsFrame);
 
-  mState = NS_FRAME_FIRST_REFLOW | NS_FRAME_IS_DIRTY;
   mStyleContext = aContext;
   mWritingMode = WritingMode(mStyleContext);
   mStyleContext->AddRef();

layout/generic/nsIFrame.h

@@ -609,6 +609,7 @@ public:
     , mParent(nullptr)
     , mNextSibling(nullptr)
     , mPrevSibling(nullptr)
+    , mState(NS_FRAME_FIRST_REFLOW | NS_FRAME_IS_DIRTY)
     , mType(aType)
   {
     mozilla::PodZero(&mOverflow);