More DCHECK() updates. A mixture of _EQ and _GE.

base/win/scoped_comptr.h

Index: base/win/scoped_comptr.h
diff --git a/base/win/scoped_comptr.h b/base/win/scoped_comptr.h
index 6375218822df5436cb64ef3fc540ca3880e71750..e508ef2ce7ce31c561527d911f1e2032b292dced 100644
--- a/base/win/scoped_comptr.h
+++ b/base/win/scoped_comptr.h
@@ -69,7 +69,7 @@ class ScopedComPtr : public scoped_refptr<Interface> {
 
   // Accepts an interface pointer that has already been addref-ed.
   void Attach(Interface* p) {
-    DCHECK(ptr_ == NULL);
+    DCHECK(!ptr_);
     ptr_ = p;
   }
 
@@ -78,7 +78,7 @@ class ScopedComPtr : public scoped_refptr<Interface> {
   // The function DCHECKs on the current value being NULL.
   // Usage: Foo(p.Receive());
   Interface** Receive() {
-    DCHECK(ptr_ == NULL) << "Object leak. Pointer must be NULL";
+    DCHECK(!ptr_) << "Object leak. Pointer must be NULL";
     return &ptr_;
   }
 
@@ -114,7 +114,7 @@ class ScopedComPtr : public scoped_refptr<Interface> {
   // Convenience wrapper around CoCreateInstance
   HRESULT CreateInstance(const CLSID& clsid, IUnknown* outer = NULL,
                          DWORD context = CLSCTX_ALL) {
-    DCHECK(ptr_ == NULL);
+    DCHECK(!ptr_);
     HRESULT hr = ::CoCreateInstance(clsid, outer, context, *interface_id,
                                     reinterpret_cast<void**>(&ptr_));
     return hr;