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

Source/core/editing/InsertIntoTextNodeCommand.cpp

Index: Source/core/editing/InsertIntoTextNodeCommand.cpp
diff --git a/Source/core/editing/InsertIntoTextNodeCommand.cpp b/Source/core/editing/InsertIntoTextNodeCommand.cpp
index 5ddb5085ba7c865f2876ef2dea6dc6a8d1bcec0c..613dfc92ec65c62ab11a2943b7d8c1962c63c500 100644
--- a/Source/core/editing/InsertIntoTextNodeCommand.cpp
+++ b/Source/core/editing/InsertIntoTextNodeCommand.cpp
@@ -20,7 +20,7 @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
@@ -71,7 +71,7 @@ void InsertIntoTextNodeCommand::doUnapply()
 {
     if (!m_node->rendererIsEditable())
         return;
-        
+
     // Need to notify this before actually deleting the text
     if (AXObjectCache* cache = document()->existingAXObjectCache())
         cache->nodeTextChangeNotification(m_node.get(), AXObjectCache::AXTextDeleted, m_offset, m_text);