Changed the virtual ids on ContentCapture to be long.

WebView will use the node addresses as the id, and these address are 64 bits.

Fixes: 123234726
Test: atest ContentCaptureSessionTest ViewNodeTest ContentCaptureSessionTest \
            CtsContentCaptureServiceTestCases \
	    CtsAutoFillServiceTestCases:VirtualContainerActivityTest \
	    CtsAutoFillServiceTestCases:VirtualContainerActivityCompatModeTest
Test: m update-api
Test: manual verification with Webview, as CtsAutoFillServiceTestCases:WebViewActivityTest is broken

Change-Id: Iaf3008ed2dd530e596489cb144da678a4dac48ca