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

Source/core/platform/graphics/ColorSpace.h

Index: Source/core/platform/graphics/ColorSpace.h
diff --git a/Source/core/platform/graphics/ColorSpace.h b/Source/core/platform/graphics/ColorSpace.h
index 7622c47b206e06f2a2eaac3a3c156bcfc4d576aa..989d0fb0f58e7aa1f086d3c94ea2ac265d5f3664 100644
--- a/Source/core/platform/graphics/ColorSpace.h
+++ b/Source/core/platform/graphics/ColorSpace.h
@@ -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.
  */
 
 #ifndef ColorSpace_h
@@ -33,7 +33,7 @@ enum ColorSpace {
     ColorSpaceSRGB,
     ColorSpaceLinearRGB
 };
-    
+
 } // namespace WebCore
 
 #endif // ColorSpace_h