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

Source/core/page/FrameTree.cpp

Index: Source/core/page/FrameTree.cpp
diff --git a/Source/core/page/FrameTree.cpp b/Source/core/page/FrameTree.cpp
index f9e06a64e2def0da57e41adc5be9c573b49bc401..a137634119ea71d682a858b5ab0f8f568d54754b 100644
--- a/Source/core/page/FrameTree.cpp
+++ b/Source/core/page/FrameTree.cpp
@@ -40,7 +40,7 @@ FrameTree::~FrameTree()
         child->setView(0);
 }
 
-void FrameTree::setName(const AtomicString& name) 
+void FrameTree::setName(const AtomicString& name)
 {
     m_name = name;
     if (!parent()) {
@@ -57,8 +57,8 @@ void FrameTree::clearName()
     m_uniqueName = AtomicString();
 }
 
-Frame* FrameTree::parent() const 
-{ 
+Frame* FrameTree::parent() const
+{
     return m_parent;
 }
 
@@ -255,10 +255,10 @@ Frame* FrameTree::find(const AtomicString& name) const
 {
     if (name == "_self" || name == "_current" || name.isEmpty())
         return m_thisFrame;
-    
+
     if (name == "_top")
         return top();
-    
+
     if (name == "_parent")
         return parent() ? parent() : m_thisFrame;
 
@@ -365,7 +365,7 @@ Frame* FrameTree::traversePreviousWithWrap(bool wrap) const
         return prevSibling->tree()->deepLastChild();
     if (Frame* parentFrame = parent())
         return parentFrame;
-    
+
     // no siblings, no parent, self==top
     if (wrap)
         return deepLastChild();