Update from https://crrev.com/304121

gpu/GLES2/gl2extchromium.h

 // 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 contains Chromium-specific GLES2 extensions declarations.
 
 #ifndef GPU_GLES2_GL2EXTCHROMIUM_H_
 #define GPU_GLES2_GL2EXTCHROMIUM_H_
 
 #include <GLES2/gl2.h>
@@ skipping 605 matching lines @@
     GLuint width, GLuint height, GLfloat scale_factor);
 #endif
 typedef void (GL_APIENTRYP PFNGLRESIZECHROMIUMPROC) (
     GLuint width, GLuint height);
 #endif  /* GL_CHROMIUM_resize */
 
 /* GL_CHROMIUM_get_multiple */
 #ifndef GL_CHROMIUM_get_multiple
 #define GL_CHROMIUM_get_multiple 1
 #ifdef GL_GLEXT_PROTOTYPES
-GL_APICALL void GL_APIENTRY glGetMultipleIntegervCHROMIUM(
-    const GLenum* pnames, GLuint count, GLint* results, GLsizeiptr size);
 GL_APICALL void GL_APIENTRY glGetProgramInfoCHROMIUM(
     GLuint program, GLsizei bufsize, GLsizei* size, void* info);
 #endif
-typedef void (GL_APIENTRYP PFNGLGETMULTIPLEINTEGERVCHROMIUMPROC) (
-   const GLenum* pnames, GLuint count, GLint* results, GLsizeiptr size);
 typedef void (GL_APIENTRYP PFNGLGETPROGRAMINFOCHROMIUMPROC) (
    GLuint program, GLsizei bufsize, GLsizei* size, void* info);
 #endif  /* GL_CHROMIUM_get_multiple */
 
 /* GL_CHROMIUM_sync_point */
 #ifndef GL_CHROMIUM_sync_point
 #define GL_CHROMIUM_sync_point 1
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL GLuint GL_APIENTRY glInsertSyncPointCHROMIUM();
 GL_APICALL void GL_APIENTRY glWaitSyncPointCHROMIUM(GLuint sync_point);
@@ skipping 37 matching lines @@
 #endif
 
 #ifndef GL_OVERLAY_TRANSFORM_ROTATE_180_CHROMIUM
 #define GL_OVERLAY_TRANSFORM_ROTATE_180_CHROMIUM 0x9249
 #endif
 
 #ifndef GL_OVERLAY_TRANSFORM_ROTATE_270_CHROMIUM
 #define GL_OVERLAY_TRANSFORM_ROTATE_270_CHROMIUM 0x924A
 #endif
 
+/* GL_CHROMIUM_subscribe_uniform */
+#ifndef GL_CHROMIUM_subscribe_uniform
+#define GL_CHROMIUM_subscribe_uniform 1
+
+#ifndef GL_SUBSCRIBED_VALUES_BUFFER_CHROMIUM
+#define GL_SUBSCRIBED_VALUES_BUFFER_CHROMIUM 0x924B
+#endif
+
+#ifndef GL_MOUSE_POSITION_CHROMIUM
+#define GL_MOUSE_POSITION_CHROMIUM 0x924C
+#endif
+
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY
+glGenValuebuffersCHROMIUM(GLsizei n, GLuint* buffers);
+GL_APICALL void GL_APIENTRY
+glDeleteValuebuffersCHROMIUM(GLsizei n, const GLuint* valuebuffers);
+GL_APICALL GLboolean GL_APIENTRY glIsValuebufferCHROMIUM(GLuint valuebuffer);
+GL_APICALL void GL_APIENTRY
+glBindValuebufferCHROMIUM(GLenum target, GLuint valuebuffer);
+GL_APICALL void GL_APIENTRY
+glSubscribeValueCHROMIUM(GLenum target, GLenum subscription);
+GL_APICALL void GL_APIENTRY glPopulateSubscribedValuesCHROMIUM(GLenum target);
+GL_APICALL void GL_APIENTRY glUniformValuebufferCHROMIUM(GLint location,
+                                                         GLenum target,
+                                                         GLenum subscription);
+#endif
+#endif /* GL_CHROMIUM_subscribe_uniform */
+
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY
     glScheduleOverlayPlaneCHROMIUM(GLint plane_z_order,
                                    GLenum plane_transform,
                                    GLuint overlay_texture_id,
                                    GLint bounds_x,
                                    GLint bounds_y,
                                    GLint bounds_width,
                                    GLint bounds_height,
                                    GLfloat uv_x,
                                    GLfloat uv_y,
                                    GLfloat uv_width,
@@ skipping 36 matching lines @@
 typedef void(GL_APIENTRYP PFNGLMATRIXLOADIDENTITYCHROMIUMPROC)(
     GLenum matrixMode);
 
 #endif /* GL_CHROMIUM_path_rendering */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // GPU_GLES2_GL2EXTCHROMIUM_H_