Use AudioUtilities::kRenderQuantumFrames everywhere
Use this instead of AudioHandler::ProcessingSizeInFrames so that
there's only one definition of the rendering size.
Basically ran
sed -i 's;ProcessingSizeInFrames;AudioUtilities::kRenderQuantumFrames;g'
for all files and then manually fixing up a few places that said
AudioHandler::AudioUtilities::kRenderQuantumFrames
BUG=
657620
TESTS=none; an internal change not visible.
Committed:
https://crrev.com/b7198aeec6e82994ef5060872852997fccd74410
Cr-Commit-Position: refs/heads/master@{#428875}