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

Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp

Index: Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
diff --git a/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp b/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
index ac6dc1d9cd4a3987d7024efdb6b62632ef00da19..ab2311a83fb2275ecfcecff3dde44f96326ffc4c 100644
--- a/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
+++ b/Source/core/html/canvas/WebGLVertexArrayObjectOES.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"
@@ -89,7 +89,7 @@ void WebGLVertexArrayObjectOES::setElementArrayBuffer(PassRefPtr<WebGLBuffer> bu
     if (m_boundElementArrayBuffer)
         m_boundElementArrayBuffer->onDetached(context()->graphicsContext3D());
     m_boundElementArrayBuffer = buffer;
-    
+
 }
 
 void WebGLVertexArrayObjectOES::setVertexAttribState(