Rename nacl::RefCounted to nacl::RefCountedThreadSafe, to make it easier to alias as gpu::RefCountedThreadSafe.

Additionally, ensure all of the nacl::RefCountedThreadSafe-derived classes
do not have public destructors.

BUG=123295
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10386080

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@137936 0039d316-1c4b-4281-b951-d872f2087c98

17 files changed, 96 insertions, 62 deletions

diff --git a/ppapi/native_client/src/include/ref_counted.h b/ppapi/native_client/src/include/ref_counted.h
index d1a1bbc..d62e020 100644
--- a/ppapi/native_client/src/include/ref_counted.h
+++ b/ppapi/native_client/src/include/ref_counted.h
@@ -65,10 +65,9 @@ class RefCountedBase {
 // You should always make your destructor private, to avoid any code deleting
 // the object accidently while there are references to it.
 template <class T>
-class RefCounted : public subtle::RefCountedBase {
+class RefCountedThreadSafe : public subtle::RefCountedBase {
  public:
-  RefCounted() { }
-  ~RefCounted() { }
+  RefCountedThreadSafe() {}
 
   void AddRef() const {
     subtle::RefCountedBase::AddRef();
@@ -80,9 +79,12 @@ class RefCounted : public subtle::RefCountedBase {
     }
   }
 
+ protected:
+  ~RefCountedThreadSafe() {}
+
  private:
-  RefCounted(const RefCounted<T>&);
-  void operator=(const RefCounted<T>&);
+  RefCountedThreadSafe(const RefCountedThreadSafe<T>&);
+  void operator=(const RefCountedThreadSafe<T>&);
 };
 
 //
@@ -90,7 +92,8 @@ class RefCounted : public subtle::RefCountedBase {
 // scoped_refptrs<>.
 //
 template<typename T>
-class RefCountedData : public nacl::RefCounted< nacl::RefCountedData<T> > {
+class RefCountedData
+    : public RefCountedThreadSafe<RefCountedData<T> > {
  public:
   RefCountedData() : data() {}
   RefCountedData(const T& in_value) : data(in_value) {}
@@ -151,8 +154,7 @@ class RefCountedData : public nacl::RefCounted< nacl::RefCountedData<T> > {
 template <class T>
 class scoped_refptr {
  public:
-  scoped_refptr() : ptr_((T*)0) {
-  }
+  scoped_refptr() : ptr_((T*)0) {}
 
   scoped_refptr(T* p) : ptr_(p) {
     if (ptr_)
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/array_buffer_proxy_var.h b/ppapi/native_client/src/shared/ppapi_proxy/array_buffer_proxy_var.h
index b84914f..04e2f67 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/array_buffer_proxy_var.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/array_buffer_proxy_var.h
@@ -34,6 +34,9 @@ class ArrayBufferProxyVar : public ProxyVar {
         static_cast<ArrayBufferProxyVar*>(proxy_var.get()));
   }
 
+ protected:
+  virtual ~ArrayBufferProxyVar() {}
+
  private:
   std::vector<uint8_t> buffer_;
 };
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio.h
index 24048bb..07d5a7d 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -31,7 +31,6 @@ enum PluginAudioState {
 class PluginAudio : public PluginResource {
  public:
   PluginAudio();
-  virtual ~PluginAudio();
   void StreamCreated(NaClSrpcImcDescType socket,
       NaClSrpcImcDescType shm, size_t shm_size);
   void set_state(PluginAudioState state) { state_ = state; }
@@ -45,6 +44,10 @@ class PluginAudio : public PluginResource {
   static void AudioThread(void* self);
   static const PPB_Audio* GetInterface();
   virtual bool InitFromBrowserResource(PP_Resource resource);
+
+ protected:
+  virtual ~PluginAudio();
+
  private:
   PP_Resource resource_;
   NaClSrpcImcDescType socket_;
@@ -56,6 +59,7 @@ class PluginAudio : public PluginResource {
   bool thread_active_;
   PPB_Audio_Callback user_callback_;
   void* user_data_;
+
   IMPLEMENT_RESOURCE(PluginAudio);
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginAudio);
 };
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.h
index 0943383..5f9af58 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_audio_config.h
@@ -18,6 +18,9 @@ class PluginAudioConfig : public PluginResource {
   // Returns the 1.0 interface to support backwards-compatibility.
   static const PPB_AudioConfig_1_0* GetInterface1_0();
 
+ protected:
+  virtual ~PluginAudioConfig() {}
+
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginAudioConfig);
 };
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_buffer.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_buffer.h
index beb1ed8..b0fce42 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_buffer.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_buffer.h
@@ -1,6 +1,6 @@
-// Copyright 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_BUFFER_H_
 #define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_BUFFER_H_
@@ -16,6 +16,9 @@ class PluginBuffer : public PluginResource {
  public:
   static const PPB_Buffer_Dev* GetInterface();
 
+ protected:
+  virtual ~PluginBuffer() {}
+
  private:
   IMPLEMENT_RESOURCE(PluginBuffer);
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginBuffer);
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_font.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_font.h
index 27e149f..733f23d 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_font.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_font.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -19,6 +19,9 @@ class PluginFont : public PluginResource {
 
   static const PPB_Font_Dev* GetInterface();
 
+ protected:
+  virtual ~PluginFont() {}
+
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginFont);
 };
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_2d.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_2d.h
index 9f03436..accc28e 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_2d.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_2d.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -19,6 +19,9 @@ class PluginGraphics2D : public PluginResource {
 
   static const PPB_Graphics2D* GetInterface();
 
+ protected:
+  virtual ~PluginGraphics2D() {}
+
  private:
   IMPLEMENT_RESOURCE(PluginGraphics2D);
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginGraphics2D);
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_3d.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_3d.h
index 7ce19cb..c457e19 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_3d.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_graphics_3d.h
@@ -29,7 +29,6 @@ namespace ppapi_proxy {
 class PluginGraphics3D : public PluginResource {
  public:
   PluginGraphics3D();
-  virtual ~PluginGraphics3D();
 
   static const PPB_Graphics3D* GetInterface();
   static const PPB_OpenGLES2* GetOpenGLESInterface();
@@ -66,8 +65,13 @@ class PluginGraphics3D : public PluginResource {
     return implFromResourceSlow(graphics3d_id);
   }
 
+ protected:
+  virtual ~PluginGraphics3D();
 
  private:
+  static gpu::gles2::GLES2Implementation* implFromResourceSlow(
+      PP_Resource context);
+
   // TODO(nfullagar): make cached_* variables TLS once 64bit NaCl is faster,
   // and the proxy has support for being called off the main thread.
   // see: http://code.google.com/p/chromium/issues/detail?id=99217
@@ -81,9 +85,6 @@ class PluginGraphics3D : public PluginResource {
   scoped_ptr<gpu::gles2::GLES2CmdHelper> gles2_helper_;
   PP_Instance instance_id_;
 
-  static gpu::gles2::GLES2Implementation* implFromResourceSlow(
-      PP_Resource context);
-
   IMPLEMENT_RESOURCE(PluginGraphics3D);
   NACL_DISALLOW_COPY_AND_ASSIGN(PluginGraphics3D);
 };
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
index 297918d2..2bff66d7 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
@@ -141,14 +141,6 @@ PluginImageData::PluginImageData()
   memset(&desc_, 0, sizeof(desc_));
 }
 
-PluginImageData::~PluginImageData() {
-  Unmap();
-  if (shm_fd_ != -1) {
-    close(shm_fd_);
-    shm_fd_ = -1;
-  }
-}
-
 bool PluginImageData::InitFromBrowserResource(PP_Resource resource) {
   nacl_abi_size_t desc_size = static_cast<nacl_abi_size_t>(sizeof(desc_));
   int32_t success = PP_FALSE;
@@ -185,4 +177,12 @@ void PluginImageData::Unmap() {
   }
 }
 
+PluginImageData::~PluginImageData() {
+  Unmap();
+  if (shm_fd_ != -1) {
+    close(shm_fd_);
+    shm_fd_ = -1;
+  }
+}
+
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.h
index 7a274a4..27f8a11c 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.h
@@ -1,6 +1,6 @@
-// Copyright 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_IMAGE_DATA_H_
 #define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_IMAGE_DATA_H_
@@ -15,7 +15,6 @@ namespace ppapi_proxy {
 class PluginImageData : public PluginResource {
  public:
   PluginImageData();
-  virtual ~PluginImageData();
 
   static const PPB_ImageData* GetInterface();
 
@@ -24,13 +23,18 @@ class PluginImageData : public PluginResource {
   void Unmap();
 
   const PP_ImageDataDesc& desc() const { return desc_; }
+
+ protected:
+  virtual ~PluginImageData();
+
  private:
-  IMPLEMENT_RESOURCE(PluginImageData);
-  NACL_DISALLOW_COPY_AND_ASSIGN(PluginImageData);
   PP_ImageDataDesc desc_;
   int shm_fd_;
   int32_t shm_size_;
   void* addr_;
+
+  IMPLEMENT_RESOURCE(PluginImageData);
+  NACL_DISALLOW_COPY_AND_ASSIGN(PluginImageData);
 };
 
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
index 40d4bf9..2020909 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
@@ -411,11 +411,6 @@ void PluginInputEvent::Init(const InputEventData& input_event_data,
   character_text_ = character_text;
 }
 
-PluginInputEvent::~PluginInputEvent() {
-  // Release the character text.  This is a no-op if it's not a string.
-  PPBVarInterface()->Release(character_text_);
-}
-
 PP_InputEvent_Type PluginInputEvent::GetType() const {
   return input_event_data_.event_type;
 }
@@ -474,4 +469,9 @@ uint32_t PluginInputEvent::GetUsbKeyCode() const {
   return input_event_data_.usb_key_code;
 }
 
+PluginInputEvent::~PluginInputEvent() {
+  // Release the character text.  This is a no-op if it's not a string.
+  PPBVarInterface()->Release(character_text_);
+}
+
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.h
index 0b5a6e2..0e6f229 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.h
@@ -20,7 +20,6 @@ class PluginInputEvent : public PluginResource {
   // Init the PluginInputEvent resource with the given data. Assumes
   // character_text has been AddRefed if it's a string, and takes ownership.
   void Init(const InputEventData& input_event_data, PP_Var character_text);
-  virtual ~PluginInputEvent();
 
   // PluginResource implementation.
   virtual bool InitFromBrowserResource(PP_Resource /*resource*/) {
@@ -53,12 +52,15 @@ class PluginInputEvent : public PluginResource {
   PP_Bool SetUsbKeyCode(uint32_t usb_key_code);
   uint32_t GetUsbKeyCode() const;
 
- private:
-  IMPLEMENT_RESOURCE(PluginInputEvent);
-  NACL_DISALLOW_COPY_AND_ASSIGN(PluginInputEvent);
+ protected:
+  virtual ~PluginInputEvent();
 
+ private:
   InputEventData input_event_data_;
   PP_Var character_text_;  // Undefined if this is not a character event.
+
+  IMPLEMENT_RESOURCE(PluginInputEvent);
+  NACL_DISALLOW_COPY_AND_ASSIGN(PluginInputEvent);
 };
 
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.cc
index 5d840a5..4ad5d5b 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.cc
@@ -82,11 +82,7 @@ PP_Bool GetClipRect(PP_Resource resource, PP_Rect* clip) {
 
 }  // namespace
 
-PluginView::PluginView() {
-}
-
-PluginView::~PluginView() {
-}
+PluginView::PluginView() {}
 
 void PluginView::Init(const ViewData& view_data) {
   view_data_ = view_data;
@@ -104,4 +100,6 @@ const PPB_View* PluginView::GetInterface() {
   return &view_interface;
 }
 
+PluginView::~PluginView() {}
+
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.h
index 99c5077..b55fc2a 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_view.h
@@ -1,6 +1,6 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_VIEW_H_
 #define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PLUGIN_VIEW_H_
@@ -17,7 +17,6 @@ class PluginView : public PluginResource {
  public:
   PluginView();
   void Init(const ViewData& view_data);
-  virtual ~PluginView();
 
   // PluginResource implementation.
   virtual bool InitFromBrowserResource(PP_Resource /*resource*/) {
@@ -29,10 +28,12 @@ class PluginView : public PluginResource {
   static const PPB_View* GetInterface();
 
  private:
-  IMPLEMENT_RESOURCE(PluginView);
-  NACL_DISALLOW_COPY_AND_ASSIGN(PluginView);
+  virtual ~PluginView();
 
   ViewData view_data_;
+
+  IMPLEMENT_RESOURCE(PluginView);
+  NACL_DISALLOW_COPY_AND_ASSIGN(PluginView);
 };
 
 }  // namespace ppapi_proxy
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h b/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
index 5222127..b80cf00 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_resource.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -29,10 +29,9 @@ namespace ppapi_proxy {
 FOR_ALL_RESOURCES(DECLARE_RESOURCE_CLASS)
 #undef DECLARE_RESOURCE_CLASS
 
-class PluginResource : public nacl::RefCounted<PluginResource> {
+class PluginResource : public nacl::RefCountedThreadSafe<PluginResource> {
  public:
   PluginResource();
-  virtual ~PluginResource();
 
   // Returns NULL if the resource is invalid or is a different type.
   template<typename T>
@@ -69,9 +68,13 @@ class PluginResource : public nacl::RefCounted<PluginResource> {
   template <typename T> T* Cast() { return NULL; }
 
  protected:
+  virtual ~PluginResource();
+
   virtual bool InitFromBrowserResource(PP_Resource resource) = 0;
 
  private:
+  friend class nacl::RefCountedThreadSafe<PluginResource>;
+
   // Type-specific getters for individual resource types. These will return
   // NULL if the resource does not match the specified type. Used by the Cast()
   // function.
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/proxy_var.h b/ppapi/native_client/src/shared/ppapi_proxy/proxy_var.h
index f5700e6..28c2ae5 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/proxy_var.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/proxy_var.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -19,7 +19,7 @@ namespace ppapi_proxy {
 //
 // Note: this class is intended to be sub-classed to handle specific content
 // types such as strings, dictionaries, or arrays.
-class ProxyVar : public nacl::RefCounted<ProxyVar> {
+class ProxyVar : public nacl::RefCountedThreadSafe<ProxyVar> {
  public:
   // The type of this cached object.  Simple types (int, bool, etc.) are not
   // cached.
@@ -38,15 +38,16 @@ class ProxyVar : public nacl::RefCounted<ProxyVar> {
   virtual ~ProxyVar() {}
 
  private:
-  friend class nacl::RefCounted<ProxyVar>;
+  friend class nacl::RefCountedThreadSafe<ProxyVar>;
+
   PP_VarType pp_var_type_;
   int64_t id_;
 
-  ProxyVar();  // Not implemented - do not use.
-  NACL_DISALLOW_COPY_AND_ASSIGN(ProxyVar);
-
   // A counter for unique ids.
   static int64_t unique_var_id;
+
+  ProxyVar();  // Not implemented - do not use.
+  NACL_DISALLOW_COPY_AND_ASSIGN(ProxyVar);
 };
 
 typedef scoped_refptr<ProxyVar> SharedProxyVar;
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/string_proxy_var.h b/ppapi/native_client/src/shared/ppapi_proxy/string_proxy_var.h
index 1c1b598..8f90e43 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/string_proxy_var.h
+++ b/ppapi/native_client/src/shared/ppapi_proxy/string_proxy_var.h
@@ -35,6 +35,9 @@ class StringProxyVar : public ProxyVar {
         static_cast<StringProxyVar*>(proxy_var.get()));
   }
 
+ protected:
+  virtual ~StringProxyVar() {}
+
  private:
   std::string contents_;
 };