Rebind EGL context to flush driver caches.

gpu/command_buffer/client/gles2_cmd_helper_autogen.h

Index: gpu/command_buffer/client/gles2_cmd_helper_autogen.h
diff --git a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
index ce321483c9f39f8529610a7624ce756f9ce7b6f4..27b98d3d561af7b4fb6c6b9aa62ce49147bd75d5 100644
--- a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
+++ b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
@@ -2814,6 +2814,14 @@ void SwapInterval(GLint interval) {
   }
 }
 
+void FlushDriverCachesCHROMIUM() {
+  gles2::cmds::FlushDriverCachesCHROMIUM* c =
+      GetCmdSpace<gles2::cmds::FlushDriverCachesCHROMIUM>();
+  if (c) {
+    c->Init();
+  }
+}
+
 void MatrixLoadfCHROMIUMImmediate(GLenum matrixMode, const GLfloat* m) {
   const uint32_t size =
       gles2::cmds::MatrixLoadfCHROMIUMImmediate::ComputeSize();