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

Source/bindings/v8/V8Binding.cpp

Index: Source/bindings/v8/V8Binding.cpp
diff --git a/Source/bindings/v8/V8Binding.cpp b/Source/bindings/v8/V8Binding.cpp
index 59dde88da41651533584b9a154472d3cc4cdf03d..fcbc7de2cffce3ba2c561474ac4439650055e12c 100644
--- a/Source/bindings/v8/V8Binding.cpp
+++ b/Source/bindings/v8/V8Binding.cpp
@@ -373,7 +373,7 @@ v8::Handle<v8::FunctionTemplate> createRawTemplate(v8::Isolate* isolate)
     v8::HandleScope scope(isolate);
     v8::Local<v8::FunctionTemplate> result = v8::FunctionTemplate::New(V8ObjectConstructor::isValidConstructorMode);
     return scope.Close(result);
-}        
+}
 
 PassRefPtr<DOMStringList> toDOMStringList(v8::Handle<v8::Value> value, v8::Isolate* isolate)
 {