gpu: Remove Echo and SwapCompletion GL interfacess

content/renderer/pepper/ppb_graphics_3d_impl.cc

 // 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.
 
 #include "content/renderer/pepper/ppb_graphics_3d_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 182 matching lines @@
     // to commit our backing texture so that the graphics appears on the page.
     // When the backing texture will be committed we get notified via
     // ViewFlushedPaint().
     //
     // Don't need to check for NULL from GetPluginInstance since when we're
     // bound, we know our instance is valid.
     HostGlobals::Get()->GetInstance(pp_instance())->CommitBackingTexture();
     commit_pending_ = true;
   } else {
     // Wait for the command to complete on the GPU to allow for throttling.
-    command_buffer_->Echo(base::Bind(&PPB_Graphics3D_Impl::OnSwapBuffers,
-                                     weak_ptr_factory_.GetWeakPtr()));
+    command_buffer_->SignalSyncPoint(
+        sync_point_,
+        base::Bind(&PPB_Graphics3D_Impl::OnSwapBuffers,
+                   weak_ptr_factory_.GetWeakPtr()));
   }
 
   return PP_OK_COMPLETIONPENDING;
 }
 
 bool PPB_Graphics3D_Impl::Init(PPB_Graphics3D_API* share_context,
                                const int32_t* attrib_list) {
   if (!InitRaw(share_context, attrib_list, NULL))
     return false;
 
@@ skipping 151 matching lines @@
       instance->module()->GetPluginInterface(PPP_GRAPHICS_3D_INTERFACE));
   // We have to check *again* that the instance exists, because it could have
   // been deleted during GetPluginInterface(). Even the PluginModule could be
   // deleted, but in that case, the instance should also be gone, so the
   // GetInstance check covers both cases.
   if (ppp_graphics_3d && HostGlobals::Get()->GetInstance(this_pp_instance))
     ppp_graphics_3d->Graphics3DContextLost(this_pp_instance);
 }
 
 }  // namespace content