18971 Revert “Add RAII wrapper for EGLSurface” (cla: yes, platform-android)

18977 Reland: Add RAII wrapper for EGLSurface (cla: yes, platform-android)

18979 Call Shell::NotifyLowMemoryWarning on Android Trim and LowMemory events (cla: yes, platform-android)

18985 Call destructor and fix check (cla: yes, platform-android)

19023 Revert “Call Shell::NotifyLowMemoryWarning on Android Trim and LowMemory events” (cla: yes, platform-android)

19026 Call Shell::NotifyLowMemory when backgrounded/memory pressure occurs on Android (cla: yes, platform-android, waiting for tree to go green)

19033 Implement external view embedder on Android (cla: yes, platform-android)