Using decorators together with `ClientRect` type fails on Chrome v61.

[muj-beg]

TypeScript Version: 2.5.2

Code

function someDecorator(target, key) {
}

class MyClass {
  @someDecorator
  field: ClientRect;
}

The transpiled output contains the following code:

__decorate([
    someDecorator,
    __metadata("design:type", ClientRect)
], Greeter.prototype, "field", void 0);

Expected behavior:
Runs without error on Chrome v61+.

Actual behavior:
Running the above code in Chrome v61 fails with the error: Uncaught ReferenceError: ClientRect is not defined.

This is due to two related issues:

1. Chrome replaced ClientRect with DOMRect: https://groups.google.com/a/chromium.org/forum/#!msg/blink-reviews/vxvUqqj2Gnw/4sbTv97SBgAJ
2. lib.d.ts hasn't been updated to reflect the above change. Inconsistents with ClientRect definition #11085

[gbilodeau]

We observed the same behavior today.

[mhegazy]

PRs welcomed. You can find more information about contributing lib.d.ts fixes at https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md#contributing-libdts-fixes.

[muj-beg]

@mhegazy Submitted pull request: microsoft/TypeScript-DOM-lib-generator#299.
However, the Travis CI build error seems related to the F# NuGet package download failure. Not sure what to do about that.