Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core)

Source/wtf/ArrayBufferView.cpp

Index: Source/wtf/ArrayBufferView.cpp
diff --git a/Source/wtf/ArrayBufferView.cpp b/Source/wtf/ArrayBufferView.cpp
index 66759de0b421cf5ace90fd55680ed0d6251bcc58..6c2c9bc84971d1291d8ea3eb80872a71f3cac2d8 100644
--- a/Source/wtf/ArrayBufferView.cpp
+++ b/Source/wtf/ArrayBufferView.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"
@@ -38,7 +38,7 @@ ArrayBufferView::ArrayBufferView(PassRefPtr<ArrayBuffer> buffer,
         , m_nextView(0)
 {
     m_baseAddress = m_buffer ? (static_cast<char*>(m_buffer->data()) + m_byteOffset) : 0;
-    if (m_buffer) 
+    if (m_buffer)
         m_buffer->addView(this);
 }