Revert 89002 - Enforce RGB even on buggy drivers.

gpu/command_buffer/service/framebuffer_manager.cc

Index: gpu/command_buffer/service/framebuffer_manager.cc
===================================================================
--- gpu/command_buffer/service/framebuffer_manager.cc	(revision 89013)
+++ gpu/command_buffer/service/framebuffer_manager.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -43,10 +43,6 @@
     render_buffer_->set_cleared();
   }
 
-  virtual bool IsTexture(TextureManager::TextureInfo* /* texture */) const {
-    return false;
-  }
-
   RenderbufferManager::RenderbufferInfo* render_buffer() const {
     return render_buffer_.get();
   }
@@ -103,10 +99,6 @@
     NOTREACHED();
   }
 
-  virtual bool IsTexture(TextureManager::TextureInfo* texture) const {
-    return texture == texture_.get();
-  }
-
   TextureManager::TextureInfo* texture() const {
     return texture_.get();
   }
@@ -177,25 +169,6 @@
   }
 }
 
-bool FramebufferManager::FramebufferInfo::HasDepthAttachment() const {
-  return attachments_.find(GL_DEPTH_STENCIL_ATTACHMENT) != attachments_.end() ||
-         attachments_.find(GL_DEPTH_ATTACHMENT) != attachments_.end();
-}
-
-bool FramebufferManager::FramebufferInfo::HasStencilAttachment() const {
-  return attachments_.find(GL_DEPTH_STENCIL_ATTACHMENT) != attachments_.end() ||
-         attachments_.find(GL_STENCIL_ATTACHMENT) != attachments_.end();
-}
-
-GLenum FramebufferManager::FramebufferInfo::GetColorAttachmentFormat() const {
-  AttachmentMap::const_iterator it = attachments_.find(GL_COLOR_ATTACHMENT0);
-  if (it == attachments_.end()) {
-    return 0;
-  }
-  const Attachment* attachment = it->second;
-  return attachment->internal_format();
-}
-
 bool FramebufferManager::FramebufferInfo::IsNotComplete() const {
   for (AttachmentMap::const_iterator it = attachments_.begin();
        it != attachments_.end(); ++it) {
@@ -242,14 +215,9 @@
          attachment == GL_DEPTH_ATTACHMENT ||
          attachment == GL_STENCIL_ATTACHMENT ||
          attachment == GL_DEPTH_STENCIL_ATTACHMENT);
-  const Attachment* a = GetAttachment(attachment);
-  if (a && a->IsTexture(texture)) {
-    texture->DetachFromFramebuffer();
-  }
   if (texture) {
     attachments_[attachment] = Attachment::Ref(
         new TextureAttachment(texture, target, level));
-    texture->AttachToFramebuffer();
   } else {
     attachments_.erase(attachment);
   }