Append newlines to EOF of all translation units. (#11654)

We are switching to -Wnewline-eof soon and these will become errors. Anyway, this was undefined behavior.

shell/platform/glfw/key_event_handler.cc

@@ -148,4 +148,4 @@ void KeyEventHandler::KeyboardHook(GLFWwindow* window,
   channel_->Send(event);
 }
 
-}  // namespace flutter
\ No newline at end of file
+}  // namespace flutter

shell/platform/windows/angle_surface_manager.cc

@@ -184,4 +184,4 @@ EGLBoolean AngleSurfaceManager::SwapBuffers(const EGLSurface surface) {
   return (eglSwapBuffers(egl_display_, surface));
 }
 
-}  // namespace flutter
\ No newline at end of file
+}  // namespace flutter

shell/platform/windows/key_event_handler.cc

@@ -60,4 +60,4 @@ void KeyEventHandler::KeyboardHook(Win32FlutterWindow* window,
   channel_->Send(event);
 }
 
-}  // namespace flutter
\ No newline at end of file
+}  // namespace flutter

shell/platform/windows/win32_flutter_window.cc

@@ -325,4 +325,4 @@ void Win32FlutterWindow::DestroyRenderSurface() {
   render_surface = EGL_NO_SURFACE;
 }
 
-}  // namespace flutter
\ No newline at end of file
+}  // namespace flutter

shell/platform/windows/win32_flutter_window.h

@@ -176,4 +176,4 @@ class Win32FlutterWindow : public Win32Window {
 
 }  // namespace flutter
 
-#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOW_H_
\ No newline at end of file
+#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOW_H_

shell/platform/windows/win32_window.cc

@@ -237,4 +237,4 @@ Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept {
       GetWindowLongPtr(window, GWLP_USERDATA));
 }
 
-}  // namespace flutter
\ No newline at end of file
+}  // namespace flutter

shell/platform/windows/win32_window.h

@@ -129,4 +129,4 @@ class Win32Window {
 
 }  // namespace flutter
 
-#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WIN32_WINDOW_H_
\ No newline at end of file
+#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WIN32_WINDOW_H_