Revert of Add RGB565 Texture readback support in gl_helper

content/browser/frame_host/render_widget_host_view_guest.cc

 // Copyright 2014 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.
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/frame_host/render_widget_host_view_guest.h"
@@ skipping 316 matching lines @@
     return;
   ViewHostMsg_SelectionBounds_Params guest_params(params);
   guest_params.anchor_rect = guest_->ToGuestRect(params.anchor_rect);
   guest_params.focus_rect = guest_->ToGuestRect(params.focus_rect);
   rwhv->SelectionBoundsChanged(guest_params);
 }
 
 void RenderWidgetHostViewGuest::CopyFromCompositingSurface(
     const gfx::Rect& src_subrect,
     const gfx::Size& dst_size,
-    const base::Callback<void(bool, const SkBitmap&)>& callback,
-    bool readback_config_rgb565) {
+    const base::Callback<void(bool, const SkBitmap&)>& callback) {
   CHECK(guest_);
   guest_->CopyFromCompositingSurface(src_subrect, dst_size, callback);
 }
 
 void RenderWidgetHostViewGuest::SetBackground(const SkBitmap& background) {
   platform_view_->SetBackground(background);
 }
 
 void RenderWidgetHostViewGuest::SetHasHorizontalScrollbar(
     bool has_horizontal_scrollbar) {
@@ skipping 183 matching lines @@
     return;
   for (ui::GestureRecognizer::Gestures::iterator g_it = gestures->begin();
       g_it != gestures->end();
       ++g_it) {
     ForwardGestureEventToRenderer(*g_it);
   }
 }
 
 
 }  // namespace content