Merge pull request #22135 from timdream/keyboard-canvas-fix

Bug 1043752 - willReadFrequently for keyboard/js/render.js, r=rudyl
Merge pull request #22130 from dmarcos/bug1043307

Bug 1043307 - Front camera image is rotated by 180 degree in landscape m...
Merge pull request #22184 from dmarcos/bug1036259master

Bug 1036259 - [dolphin] unable to take video after removing and insert S...
Merge pull request #22082 from aajain/bug_1042357

Bug 1042357 - Code to removeEventListener for radiostatechange in radio.js is not working r=arthur.chen