Skia: Add NEON intrinsic D32_A8_Black and D32_A8_Opaque

If NEON support is indiciated via __ARM_HAVE_NEON flag then use
an optimized NEON intrinsics version of the D32_A8_Black and D32_A8_Opaque
masking function.

Change-Id: I20d2bf15515d960b73e635784a0daf29302e1f12
skia: Fix Codenomicon image open failure.

Add code to handle 'No image descriptor' case in a gif image format.
Remove goto call.

CRs-Fixed: 333162

(cherrypicked from commit I80d7df9d5f112b5fe32699ce6dd2df0f48323bb1)

Change-Id: I44ff4e0ab681febdb5304b9761a92e6717d4ee2a
SkLanguage and SkPaintOptionsAndroid optimization

(1) Global linked list to manage SkLanguage and SkPaintOptionsAndroid
    objects
(2) All copy constructor overheads associated with above classes are
    changed to simple pointer assignment
(3) All string related operations in SkLanguage class are replaced with
    simple pointer manipulation. Also saving on string allocations.
(4) SkLangList and SkPaintOptionsAndroidList are 2 new classes created
    to manage the global linked list
(5) SkLanguages and SkPaintOptionsAndroids are 2 new singleton classes
    created to work with the global linked list class (See 4)

Change-Id: Id1d8357569e79f7e3da403b56a08db937afb07eb
SkDraw::drawRect optimization

New class in SkDeviceLooper.cpp falls in in the critical code path of
SkDraw::drawRect().  This new class SkDeviceLooper does nothing except
for bound checking. It copies the modified rect bounds into new pointer
variables and returns them back "if needed". The additional overhead of
creating an object of SkDeviceLooper class and calling member functions
reduces performance.  This patch creates a pre-check condition and if
it succeeds we know for sure SkDeviceLooper won't change the rect
bounds. Under this condition, we avoid using the SkDeviceLooper class.

Change-Id: I11fa13ace8d50d52069e1780a14874e4c34133f2
external/skia Hooks for optimized blitting

Add in hooks to allow for overriding blitting operations with
optimized functions.

Change-Id: If38010a69d9fe7cf412d91c277db666f2fd7df34
Hide warnings for skia

Can be handled upstream if needed.

Change-Id: I25d4ab459b1158c3f7f0f8129561cf9495b60fca
NEON optimized blitter S32_Opaque_D32_filter_DX

Re-work for latest code base as the -Os compiler options is added.
Overwrite the optimization level at function level.

Change-Id: I732fea7f02f775a4b06884460dea2887d4108820

Conflicts:
	Android.mk
Skia: Fix special case in D32_A8_Opaque and _Black

Neon optimization implemented for D32_A8_Opaque and D32_A8_Black
is not using the right mask for width>=2 and width<4 case. This
is fixed in this patch by handling 4 different cases: width >=8,
4<=width<7, 2<=width<4, and residual case.

Change-Id: I20bf1cc28eac08402d4133aac663ebfc393edbe0
-03
Fix derp