Summary:
We want Flipper plugins to share imports with Flipper:
- They must share the same React otherwise different Reacts could conflict with each other
- Other common modules are shared to decrease the bundle size for each plugin.
`setGlobalObject` provides shared modules to Flipper Plugins by adding them to the global context (window or process or global this).
In the headless context, we do not have React and other DOM-related libraries, so we provide stubs instead.
Reviewed By: passy
Differential Revision: D36130161
fbshipit-source-id: d30c59a6c3ae02e7f9244bc0bb5790079b771107
