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

Source/core/loader/ProgressTracker.h

Index: Source/core/loader/ProgressTracker.h
diff --git a/Source/core/loader/ProgressTracker.h b/Source/core/loader/ProgressTracker.h
index c871cc4cf85fea27891540d4be6cc39921ae1378..f7516c70e7405521155d44de36789a910705e5a1 100644
--- a/Source/core/loader/ProgressTracker.h
+++ b/Source/core/loader/ProgressTracker.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 ProgressTracker_h
@@ -50,7 +50,7 @@ public:
 
     void progressStarted(Frame*);
     void progressCompleted(Frame*);
-    
+
     void incrementProgress(unsigned long identifier, const ResourceResponse&);
     void incrementProgress(unsigned long identifier, const char*, int);
     void completeProgress(unsigned long identifier);
@@ -63,21 +63,21 @@ private:
 
     void reset();
     void finalProgressComplete();
-    
+
     long long m_totalPageAndResourceBytesToLoad;
     long long m_totalBytesReceived;
     double m_lastNotifiedProgressValue;
     double m_lastNotifiedProgressTime;
     double m_progressNotificationInterval;
     double m_progressNotificationTimeInterval;
-    bool m_finalProgressChangedSent;    
+    bool m_finalProgressChangedSent;
     double m_progressValue;
     RefPtr<Frame> m_originatingProgressFrame;
-    
+
     int m_numProgressTrackedFrames;
     HashMap<unsigned long, OwnPtr<ProgressItem> > m_progressItems;
 };
-    
+
 }
 
 #endif