cc: Move TextureMailbox::ReleaseCallback to SingleReleaseCallback.

cc/resources/texture_mailbox.cc

Index: cc/resources/texture_mailbox.cc
diff --git a/cc/resources/texture_mailbox.cc b/cc/resources/texture_mailbox.cc
index 2a8f570c1bf23ced9bc9251133c232782d422c2a..149d56c8d1ac12031cf85f1646fa7d8fe952a406 100644
--- a/cc/resources/texture_mailbox.cc
+++ b/cc/resources/texture_mailbox.cc
@@ -4,7 +4,6 @@
 
 #include "cc/resources/texture_mailbox.h"
 
-#include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "third_party/khronos/GLES2/gl2.h"
 
@@ -16,69 +15,48 @@ TextureMailbox::TextureMailbox()
       shared_memory_(NULL) {
 }
 
-TextureMailbox::TextureMailbox(
-    const std::string& mailbox_name,
-    const ReleaseCallback& callback)
-    : callback_(callback),
-      target_(GL_TEXTURE_2D),
+TextureMailbox::TextureMailbox(const std::string& mailbox_name)
+    : target_(GL_TEXTURE_2D),
       sync_point_(0),
       shared_memory_(NULL) {
-  DCHECK(mailbox_name.empty() == callback.is_null());
   if (!mailbox_name.empty()) {
     CHECK(mailbox_name.size() == sizeof(name_.name));
     name_.SetName(reinterpret_cast<const int8*>(mailbox_name.data()));
   }
 }
 
-TextureMailbox::TextureMailbox(
-    const gpu::Mailbox& mailbox_name,
-    const ReleaseCallback& callback)
-    : callback_(callback),
-      target_(GL_TEXTURE_2D),
+TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox_name)
+    : target_(GL_TEXTURE_2D),
       sync_point_(0),
       shared_memory_(NULL) {
-  DCHECK(mailbox_name.IsZero() == callback.is_null());
   name_.SetName(mailbox_name.name);
 }
 
-TextureMailbox::TextureMailbox(
-    const gpu::Mailbox& mailbox_name,
-    const ReleaseCallback& callback,
-    unsigned sync_point)
-    : callback_(callback),
-      target_(GL_TEXTURE_2D),
+TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox_name,
+                               unsigned sync_point)
+    : target_(GL_TEXTURE_2D),
       sync_point_(sync_point),
       shared_memory_(NULL) {
-  DCHECK(mailbox_name.IsZero() == callback.is_null());
   name_.SetName(mailbox_name.name);
 }
 
-TextureMailbox::TextureMailbox(
-    const gpu::Mailbox& mailbox_name,
-    const ReleaseCallback& callback,
-    unsigned texture_target,
-    unsigned sync_point)
-    : callback_(callback),
-      target_(texture_target),
+TextureMailbox::TextureMailbox(const gpu::Mailbox& mailbox_name,
+                               unsigned texture_target,
+                               unsigned sync_point)
+    : target_(texture_target),
       sync_point_(sync_point),
       shared_memory_(NULL) {
-  DCHECK(mailbox_name.IsZero() == callback.is_null());
   name_.SetName(mailbox_name.name);
 }
 
-TextureMailbox::TextureMailbox(
-    base::SharedMemory* shared_memory,
-    gfx::Size size,
-    const ReleaseCallback& callback)
-    : callback_(callback),
-      target_(GL_TEXTURE_2D),
+TextureMailbox::TextureMailbox(base::SharedMemory* shared_memory,
+                               gfx::Size size)
+    : target_(GL_TEXTURE_2D),
       sync_point_(0),
       shared_memory_(shared_memory),
-      shared_memory_size_(size) {
-}
+      shared_memory_size_(size) {}
 
-TextureMailbox::~TextureMailbox() {
-}
+TextureMailbox::~TextureMailbox() {}
 
 bool TextureMailbox::Equals(const TextureMailbox& other) const {
   if (other.IsTexture())
@@ -103,19 +81,6 @@ void TextureMailbox::SetName(const gpu::Mailbox& name) {
   name_ = name;
 }
 
-void TextureMailbox::RunReleaseCallback(unsigned sync_point,
-                                        bool lost_resource) {
-  if (!callback_.is_null())
-    base::ResetAndReturn(&callback_).Run(sync_point, lost_resource);
-}
-
-TextureMailbox TextureMailbox::CopyWithNewCallback(
-    const ReleaseCallback& callback) const {
-  TextureMailbox result(*this);
-  result.callback_ = callback;
-  return result;
-}
-
 size_t TextureMailbox::shared_memory_size_in_bytes() const {
   return 4 * shared_memory_size_.GetArea();
 }