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

Source/core/dom/TextEvent.h

Index: Source/core/dom/TextEvent.h
diff --git a/Source/core/dom/TextEvent.h b/Source/core/dom/TextEvent.h
index 90f06df7f200e4f12ea39b803bf5aeef292b9197..c0dcb692645dbb3b8cc4ea49a29eb9734e4b91c4 100644
--- a/Source/core/dom/TextEvent.h
+++ b/Source/core/dom/TextEvent.h
@@ -9,7 +9,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
@@ -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.
  *
  */
 
@@ -44,9 +44,9 @@ namespace WebCore {
         static PassRefPtr<TextEvent> createForDrop(PassRefPtr<AbstractView> view, const String& data);
 
         virtual ~TextEvent();
-    
+
         void initTextEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView>, const String& data);
-    
+
         String data() const { return m_data; }
 
         virtual const AtomicString& interfaceName() const;