vp8enci.h: cosmetics: fix '*' placement

associate with the type

Change-Id: Icf94f11bf79f6ccee3150e27b228755f8f3f0f37
cosmetics: remove some extraneous 'extern's

Change-Id: Ib3f0cff37120c51633387dd1c46592c53ab0ba6d
bit_writer: cosmetics: rename kFlush() -> Flush()

Change-Id: I8907927974188bee85ffade1d75d2e50817aa115
Merge "vp8enci.h: cosmetics: fix '*' placement"
Merge "cosmetics: remove some extraneous 'extern's"