Allow binding multiple textures to one DC Layer overlay.

gpu/command_buffer/client/gles2_implementation_impl_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_impl_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
index a5a5091eed8901a1962b807c87dab330f03b722f..345278672866ed657117640ffe0938037386379c 100644
--- a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
@@ -3329,6 +3329,16 @@ void GLES2Implementation::FlushDriverCachesCHROMIUM() {
   CheckGLError();
 }
 
+void GLES2Implementation::SetDCLayerTextureCHROMIUM(
+    GLuint index,
+    GLuint contents_texture_id) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glSetDCLayerTextureCHROMIUM("
+                     << index << ", " << contents_texture_id << ")");
+  helper_->SetDCLayerTextureCHROMIUM(index, contents_texture_id);
+  CheckGLError();
+}
+
 void GLES2Implementation::MatrixLoadfCHROMIUM(GLenum matrixMode,
                                               const GLfloat* m) {
   GPU_CLIENT_SINGLE_THREAD_CHECK();