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

Source/bindings/v8/V8PerContextData.cpp

Index: Source/bindings/v8/V8PerContextData.cpp
diff --git a/Source/bindings/v8/V8PerContextData.cpp b/Source/bindings/v8/V8PerContextData.cpp
index c2edd8d4e55be2084afc37e5cfa7bf25347a8c38..9edbdbc299907e6a9befacc78437f4abd60cbee6 100644
--- a/Source/bindings/v8/V8PerContextData.cpp
+++ b/Source/bindings/v8/V8PerContextData.cpp
@@ -152,13 +152,13 @@ CustomElementBinding* V8PerContextData::customElementBinding(CustomElementDefini
 }
 
 
-static v8::Handle<v8::Value> createDebugData(const char* worldName, int debugId) 
+static v8::Handle<v8::Value> createDebugData(const char* worldName, int debugId)
 {
     char buffer[32];
     unsigned wanted;
     if (debugId == -1)
         wanted = snprintf(buffer, sizeof(buffer), "%s", worldName);
-    else 
+    else
         wanted = snprintf(buffer, sizeof(buffer), "%s,%d", worldName, debugId);
 
     if (wanted < sizeof(buffer))
@@ -179,7 +179,7 @@ static void setDebugData(v8::Handle<v8::Context> context, v8::Handle<v8::Value>
     context->SetEmbedderData(v8ContextDebugIdIndex, value);
 }
 
-bool V8PerContextDebugData::setContextDebugData(v8::Handle<v8::Context> context, const char* worldName, int debugId) 
+bool V8PerContextDebugData::setContextDebugData(v8::Handle<v8::Context> context, const char* worldName, int debugId)
 {
     if (!debugData(context)->IsUndefined())
         return false;
@@ -189,7 +189,7 @@ bool V8PerContextDebugData::setContextDebugData(v8::Handle<v8::Context> context,
     return true;
 }
 
-int V8PerContextDebugData::contextDebugId(v8::Handle<v8::Context> context) 
+int V8PerContextDebugData::contextDebugId(v8::Handle<v8::Context> context)
 {
     v8::HandleScope scope;
     v8::Handle<v8::Value> data = debugData(context);