Manually update copyright notices in files that defied the automated process

Manually update copyright notices in files that defied the automated process
used in http://codereview.appspot.com/4816058/ ('Automatic update of all copyright notices to reflect new license terms.')

Note that the following files have been left alone, because they name
copyright holders outside of Google.  Please let me know if we need to update
these files:

experimental/CiCarbonSampleMain.c
src/opts/memset16_neon.S
src/opts/memset32_neon.S
src/opts/opts_check_arm.cpp
src/ports/SkDebug_brew.cpp
src/ports/SkMemory_brew.cpp
src/ports/SkOSFile_brew.cpp
Committed: http://code.google.com/p/skia/source/detail?r=1981

[epoger, 2011-07-28 13:58:29]

Updated copyright notice within the following files, and added the LICENSE file
itself.

src/opts/memset16_neon.S
src/opts/memset32_neon.S
src/opts/opts_check_arm.cpp
src/ports/SkDebug_brew.cpp
src/ports/SkMemory_brew.cpp
src/ports/SkOSFile_brew.cpp

[reed1, 2011-07-28 14:02:25]

LGTM