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

Source/modules/geolocation/Geolocation.h

Index: Source/modules/geolocation/Geolocation.h
diff --git a/Source/modules/geolocation/Geolocation.h b/Source/modules/geolocation/Geolocation.h
index 90709ec93071b5e14b58f6f2be6f1e6d36ebf4e8..e7f6975eb8fa41bebeff834a3a01d667c865f397 100644
--- a/Source/modules/geolocation/Geolocation.h
+++ b/Source/modules/geolocation/Geolocation.h
@@ -21,7 +21,7 @@
  * 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.
  */
 
 #ifndef Geolocation_h
@@ -173,7 +173,7 @@ private:
 
     GeoNotifierSet m_requestsAwaitingCachedPosition;
 };
-    
+
 } // namespace WebCore
 
 #endif // Geolocation_h