Fix trailing whitespace in .cpp, .h, and .idl files

Source/core/page/FrameTree.h

Index: Source/core/page/FrameTree.h
diff --git a/Source/core/page/FrameTree.h b/Source/core/page/FrameTree.h
index 3d31eb0cc04707c8a0c9585e3fd88bbb06859369..ac2886fc707125cbc156a5f8146d81d21c8360d0 100644
--- a/Source/core/page/FrameTree.h
+++ b/Source/core/page/FrameTree.h
@@ -32,7 +32,7 @@ namespace WebCore {
     public:
         const static unsigned invalidCount = static_cast<unsigned>(-1);
 
-        FrameTree(Frame* thisFrame, Frame* parentFrame) 
+        FrameTree(Frame* thisFrame, Frame* parentFrame)
             : m_thisFrame(thisFrame)
             , m_parent(parentFrame)
             , m_previousSibling(0)
@@ -49,7 +49,7 @@ namespace WebCore {
         void clearName();
         Frame* parent() const;
         void setParent(Frame* parent) { m_parent = parent; }
-        
+
         Frame* nextSibling() const { return m_nextSibling.get(); }
         Frame* previousSibling() const { return m_previousSibling; }
         Frame* firstChild() const { return m_firstChild.get(); }
@@ -59,7 +59,7 @@ namespace WebCore {
         Frame* traverseNext(const Frame* stayWithin = 0) const;
         Frame* traverseNextWithWrap(bool) const;
         Frame* traversePreviousWithWrap(bool) const;
-        
+
         void appendChild(PassRefPtr<Frame>);
         bool transferChild(PassRefPtr<Frame>);
         void detachFromParent() { m_parent = 0; }