Expose mapExternalTexture extension to WebGraphicsContext3D

webkit/gpu/webgraphicscontext3d_in_process_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/gpu/webgraphicscontext3d_in_process_impl.h"
 
 #include <string.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 676 matching lines @@
                    0,  // level
                    GL_RGBA,
                    0, 0,  // x, y
                    width,
                    height,
                    0);  // border
   glBindTexture(GL_TEXTURE_2D, bound_texture_);
   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, bound_fbo_);
 }
 
+void WebGraphicsContext3DInProcessImpl::mapExternalTextureCHROMIUM(
+      WebGLId source_texture, WebGraphicsContext3D* source_context,
+      WebGLId destination_texture) {
+  // TODO(jamesr): implement this, if this is a supported configuration.
+}
+
 WebString WebGraphicsContext3DInProcessImpl::
     getRequestableExtensionsCHROMIUM() {
   return WebString();
 }
 
 void WebGraphicsContext3DInProcessImpl::requestExtensionCHROMIUM(const char*) {
 }
 
 void WebGraphicsContext3DInProcessImpl::blitFramebufferCHROMIUM(
     WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
@@ skipping 931 matching lines @@
   if (length > 1) {
     entry->translated_source.reset(new char[length]);
     ShGetObjectCode(compiler, entry->translated_source.get());
   }
   entry->is_valid = true;
   return true;
 }
 
 }  // namespace gpu
 }  // namespace webkit