Add OpenGL occlusion query support to pepper.

ppapi/lib/gl/gles2/gles2.c

 // 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // DO NOT EDIT!
 
 #include <GLES2/gl2.h>
 #include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
@@ skipping 757 matching lines @@
     GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
     GLsizei height) {
   const struct PPB_OpenGLES2FramebufferMultisample_Dev* ext =
       glGetFramebufferMultisampleInterfacePPAPI();
   if (ext)
     ext->RenderbufferStorageMultisampleEXT(
         glGetCurrentContextPPAPI(), target, samples, internalformat, width,
         height);
 }
 
+void GL_APIENTRY glGenQueriesEXT(GLsizei n, GLuint* queries) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->GenQueriesEXT(glGetCurrentContextPPAPI(), n, queries);
+}
+
+void GL_APIENTRY glDeleteQueriesEXT(GLsizei n, const GLuint* queries) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->DeleteQueriesEXT(glGetCurrentContextPPAPI(), n, queries);
+}
+
+GLboolean GL_APIENTRY glIsQueryEXT(GLuint id) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    return ext->IsQueryEXT(glGetCurrentContextPPAPI(), id);
+  return 0;
+}
+
+void GL_APIENTRY glBeginQueryEXT(GLenum target, GLuint id) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->BeginQueryEXT(glGetCurrentContextPPAPI(), target, id);
+}
+
+void GL_APIENTRY glEndQueryEXT(GLenum target) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->EndQueryEXT(glGetCurrentContextPPAPI(), target);
+}
+
+void GL_APIENTRY glGetQueryivEXT(GLenum target, GLenum pname, GLint* params) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->GetQueryivEXT(glGetCurrentContextPPAPI(), target, pname, params);
+}
+
+void GL_APIENTRY glGetQueryObjectuivEXT(
+    GLuint id, GLenum pname, GLuint* params) {
+  const struct PPB_OpenGLES2Query_Dev* ext = glGetQueryInterfacePPAPI();
+  if (ext)
+    ext->GetQueryObjectuivEXT(glGetCurrentContextPPAPI(), id, pname, params);
+}
+
 GLboolean GL_APIENTRY glEnableFeatureCHROMIUM(const char* feature) {
   const struct PPB_OpenGLES2ChromiumEnableFeature_Dev* ext =
       glGetChromiumEnableFeatureInterfacePPAPI();
   if (ext)
     return ext->EnableFeatureCHROMIUM(glGetCurrentContextPPAPI(), feature);
   return 0;
 }
 
 void* GL_APIENTRY glMapBufferSubDataCHROMIUM(
     GLuint target, GLintptr offset, GLsizeiptr size, GLenum access) {
@@ skipping 50 matching lines @@
         glGetCurrentContextPPAPI(), mode, count, type, indices, primcount);
 }
 
 void GL_APIENTRY glVertexAttribDivisorANGLE(GLuint index, GLuint divisor) {
   const struct PPB_OpenGLES2InstancedArrays_Dev* ext =
       glGetInstancedArraysInterfacePPAPI();
   if (ext)
     ext->VertexAttribDivisorANGLE(glGetCurrentContextPPAPI(), index, divisor);
 }