Provide copy action only when a text is sent

The copy button will be present to the user only when a text without
images is sent i.e. intent action is ACTION_SEND, EXTRA_STREAM does not
have any URI and EXTRA_TEXT is not null.

Fix: 287061873
Fix: 275382122
Fix: 288425116
Test: manual testing
Test: atest ChooserActionFactoryTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a1c9dc6af9fb0ff4b50ed1b8e7f59bdfccbfa682)
Merged-In: I26c6eef24e7f909842eb066a73286a7525124d21
Change-Id: I26c6eef24e7f909842eb066a73286a7525124d21