26932 Make UriMapper and StdoutHandler public and add test cases (cla: yes, tool)

26938 Fix gradle verbose error. (cla: yes, customer: gold, t: gradle, tool, waiting for tree to go green)

26942 Detect Android SDK 28/28.0.3 (a: first hour, cla: yes, t: flutter doctor, tool, waiting for tree to go green, ▣ platform-android)

26944 Use mDNS to discover the device port (cla: yes, tool, ⌺‬ platform-ios)

26964 Refactor logic to get plugins path for android studio in mac (cla: yes, customer: gold, t: gradle, tool, waiting for tree to go green, ▣ platform-android)

26967 Use site-shared as canonical source for Flutter logo (cla: yes, team)