Binding Graphics3D with Instance and OpenGLES2 interface.

webkit/plugins/ppapi/ppb_graphics_3d_impl.cc

 // 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.
 
 #include "webkit/plugins/ppapi/ppb_graphics_3d_impl.h"
 
 #include "base/message_loop.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
@@ skipping 123 matching lines @@
 
 PP_Graphics3DTrustedState PPB_Graphics3D_Impl::FlushSyncFast(
     int32_t put_offset,
     int32_t last_known_get) {
   return PPStateFromGPUState(
       GetCommandBuffer()->FlushSync(put_offset, last_known_get));
 }
 
 bool PPB_Graphics3D_Impl::BindToInstance(bool bind) {
   bound_to_instance_ = bind;
+  if (bind && gles2_impl()) {
+    // Resize the backing texture to the size of the instance when it is bound.
+    // TODO(alokp): This should be the responsibility of plugins.
+    const gfx::Size& size = instance()->position().size();
+    gles2_impl()->ResizeCHROMIUM(size.width(), size.height());
+  }
   return true;
 }
 
 unsigned int PPB_Graphics3D_Impl::GetBackingTextureId() {
   return platform_context_->GetBackingTextureId();
 }
 
 void PPB_Graphics3D_Impl::ViewInitiatedPaint() {
 }
 
@@ skipping 89 matching lines @@
   const PPP_Graphics3D_Dev* ppp_graphics_3d =
       static_cast<const PPP_Graphics3D_Dev*>(
           instance()->module()->GetPluginInterface(
               PPP_GRAPHICS_3D_DEV_INTERFACE));
   if (ppp_graphics_3d)
     ppp_graphics_3d->Graphics3DContextLost(instance()->pp_instance());
 }
 
 }  // namespace ppapi
 }  // namespace webkit