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

Source/core/loader/CrossOriginAccessControl.cpp

Index: Source/core/loader/CrossOriginAccessControl.cpp
diff --git a/Source/core/loader/CrossOriginAccessControl.cpp b/Source/core/loader/CrossOriginAccessControl.cpp
index b7bb124cde903720add2bddb75c478e76aa94fd5..0cad634b94a7cd29f3a8df9618fe0316a7cfabfa 100644
--- a/Source/core/loader/CrossOriginAccessControl.cpp
+++ b/Source/core/loader/CrossOriginAccessControl.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.
  *
  */
 
@@ -79,7 +79,7 @@ bool isSimpleCrossOriginAccessRequest(const String& method, const HTTPHeaderMap&
 static PassOwnPtr<HTTPHeaderSet> createAllowedCrossOriginResponseHeadersSet()
 {
     OwnPtr<HTTPHeaderSet> headerSet = adoptPtr(new HashSet<String, CaseFoldingHash>);
-    
+
     headerSet->add("cache-control");
     headerSet->add("content-language");
     headerSet->add("content-type");