Allow binding multiple textures to one DC Layer overlay.

gpu/command_buffer/client/gles2_c_lib_autogen.h

 // Copyright 2014 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
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 1505 matching lines @@
 }
 void GL_APIENTRY
 GLES2ScheduleDCLayerSharedStateCHROMIUM(GLfloat opacity,
                                         GLboolean is_clipped,
                                         const GLfloat* clip_rect,
                                         GLint z_order,
                                         const GLfloat* transform) {
   gles2::GetGLContext()->ScheduleDCLayerSharedStateCHROMIUM(
       opacity, is_clipped, clip_rect, z_order, transform);
 }
-void GL_APIENTRY GLES2ScheduleDCLayerCHROMIUM(GLuint contents_texture_id,
-                                              const GLfloat* contents_rect,
+void GL_APIENTRY GLES2SetDCLayerTextureCHROMIUM(GLuint index,
+                                                GLuint contents_texture_id) {
+  gles2::GetGLContext()->SetDCLayerTextureCHROMIUM(index, contents_texture_id);
+}
+void GL_APIENTRY GLES2ScheduleDCLayerCHROMIUM(const GLfloat* contents_rect,
                                               GLuint background_color,
                                               GLuint edge_aa_mask,
                                               const GLfloat* bounds_rect,
                                               GLuint filter) {
   gles2::GetGLContext()->ScheduleDCLayerCHROMIUM(
-      contents_texture_id, contents_rect, background_color, edge_aa_mask,
-      bounds_rect, filter);
+      contents_rect, background_color, edge_aa_mask, bounds_rect, filter);
 }
 void GL_APIENTRY GLES2MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) {
   gles2::GetGLContext()->MatrixLoadfCHROMIUM(matrixMode, m);
 }
 void GL_APIENTRY GLES2MatrixLoadIdentityCHROMIUM(GLenum matrixMode) {
   gles2::GetGLContext()->MatrixLoadIdentityCHROMIUM(matrixMode);
 }
 GLuint GL_APIENTRY GLES2GenPathsCHROMIUM(GLsizei range) {
   return gles2::GetGLContext()->GenPathsCHROMIUM(range);
 }
@@ skipping 1367 matching lines @@
     {
         "glGetLastFlushIdCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glGetLastFlushIdCHROMIUM),
     },
     {
         "glScheduleDCLayerSharedStateCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(
             glScheduleDCLayerSharedStateCHROMIUM),
     },
     {
+        "glSetDCLayerTextureCHROMIUM",
+        reinterpret_cast<GLES2FunctionPointer>(glSetDCLayerTextureCHROMIUM),
+    },
+    {
         "glScheduleDCLayerCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glScheduleDCLayerCHROMIUM),
     },
     {
         "glMatrixLoadfCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glMatrixLoadfCHROMIUM),
     },
     {
         "glMatrixLoadIdentityCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glMatrixLoadIdentityCHROMIUM),
@@ skipping 147 matching lines @@
         "glSetEnableDCLayersCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glSetEnableDCLayersCHROMIUM),
     },
     {
         NULL, NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_