Introduce the use of Chromium types (issue #1336).

Changes to the CEF public API:
- Add base::Bind, base::Callback, base::Lock, base::WeakPtr, scoped_refptr, scoped_ptr and supporting types.
- Add include/wrapper/cef_closure_task.h helpers for converting a base::Closure to a CefTask.
- Change CefRefPtr to extend scoped_refptr.
-- Change CefBase method signatures to match RefCountedThreadSafeBase.
- Change IMPLEMENT_REFCOUNTING to use base::AtomicRefCount*.
-- Remove the CefAtomic* functions.
-- IMPLEMENT_REFCOUNTING now enforces via a compile-time error that the correct class name was passed to the macro.
- Change IMPLEMENT_LOCKING to use base::Lock.
-- Remove the CefCriticalSection class.
-- Deprecate the IMPLEMENT_LOCKING macro.
-- base::Lock will DCHECK() in Debug builds if lock usage is reentrant.
- Move include/internal/cef_tuple.h to include/base/cef_tuple.h.
- Allow an empty |callback| parameter passed to CefBeginTracing.

Changes to the CEF implementation:
- Fix incorrect names passed to the IMPLEMENT_REFCOUNTING macro.
- Fix instances of reentrant locking in the CefXmlObject and CefRequest implementations.
- Remove use of the IMPLEMENT_LOCKING macro.

Changes to cef_unittests:
- Add tests/unittests/chromium_includes.h and always include it first from unit test .cc files to avoid name conflicts with Chromium types.
- Fix wrong header include ordering.
- Remove use of the IMPLEMENT_LOCKING macro.

Changes to cefclient and cefsimple:
- Use base::Bind and cef_closure_task.h instead of NewCefRunnable*.
- Remove use of the IMPEMENT_LOCKING macro.
- Fix incorrect/unnecessary locking.
- Add additional runtime thread checks.
- Windows: Perform actions on the UI thread instead of the main thread when running in multi-threaded-message-loop mode to avoid excessive locking.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1769 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef_dll/cpptoc/base_cpptoc.h

@@ -78,7 +78,7 @@ class CefBaseCppToC : public CefBase {
     struct_.struct_.size = sizeof(cef_base_t);
     struct_.struct_.add_ref = struct_add_ref;
     struct_.struct_.release = struct_release;
-    struct_.struct_.get_refct = struct_get_refct;
+    struct_.struct_.has_one_ref = struct_has_one_ref;
   }
   virtual ~CefBaseCppToC() {}
 
@@ -91,32 +91,33 @@ class CefBaseCppToC : public CefBase {
 
   // CefBase methods increment/decrement reference counts on both this object
   // and the underlying wrapper class.
-  int AddRef() {
+  void AddRef() const {
     UnderlyingAddRef();
-    return refct_.AddRef();
+    ref_count_.AddRef();
   }
-  int Release() {
+  bool Release() const {
     UnderlyingRelease();
-    int retval = refct_.Release();
-    if (retval == 0)
+    if (ref_count_.Release()) {
       delete this;
-    return retval;
+      return true;
+    }
+    return false;
   }
-  int GetRefCt() { return refct_.GetRefCt(); }
+  bool HasOneRef() const { return ref_count_.HasOneRef(); }
 
   // Increment/decrement reference counts on only the underlying class.
-  int UnderlyingAddRef() { return class_->AddRef(); }
-  int UnderlyingRelease() { return class_->Release(); }
-  int UnderlyingGetRefCt() { return class_->GetRefCt(); }
+  void UnderlyingAddRef() const { class_->AddRef(); }
+  bool UnderlyingRelease() const { return class_->Release(); }
+  bool UnderlyingHasOneRef() const { return class_->HasOneRef(); }
 
  private:
-  static int CEF_CALLBACK struct_add_ref(struct _cef_base_t* base) {
+  static void CEF_CALLBACK struct_add_ref(struct _cef_base_t* base) {
     DCHECK(base);
     if (!base)
-      return 0;
+      return;
 
     Struct* impl = reinterpret_cast<Struct*>(base);
-    return impl->class_->AddRef();
+    impl->class_->AddRef();
   }
 
   static int CEF_CALLBACK struct_release(struct _cef_base_t* base) {
@@ -128,16 +129,16 @@ class CefBaseCppToC : public CefBase {
     return impl->class_->Release();
   }
 
-  static int CEF_CALLBACK struct_get_refct(struct _cef_base_t* base) {
+  static int CEF_CALLBACK struct_has_one_ref(struct _cef_base_t* base) {
     DCHECK(base);
     if (!base)
       return 0;
 
     Struct* impl = reinterpret_cast<Struct*>(base);
-    return impl->class_->GetRefCt();
+    return impl->class_->HasOneRef();
   }
 
-  CefRefCount refct_;
+  CefRefCount ref_count_;
   Struct struct_;
   CefBase* class_;