Introduce CC/CXX/JAVAC_WRAPPER to wrap the calls to clang.
Introduce CC/CXX/JAVAC_WRAPPER to wrap the calls to clang.

This is essentially Ide800c24f0c2ebbb1cfb358bd8f99ec8a9d41253
applied to clang.

Change-Id: I883f9e9a31fff50a64568a06ef5248437344542b

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build