Changing imageFilterTests to use drawBitmap instead of drawSprite

Changing imageFilter GM tests to use drawBitmap instead of drawSprite

The motivation is be able to test the filters with scaled SkPicture playback in isolation from the issues that surround usage of drawSprite
Committed: https://code.google.com/p/skia/source/detail?r=7152

[Stephen White, 2013-01-10 22:20:47]

Thanks for doing this.

https://codereview.appspot.com/7060071/diff/3001/gm/blend.cpp
File gm/blend.cpp (right):

https://codereview.appspot.com/7060071/diff/3001/gm/blend.cpp#newcode66
gm/blend.cpp:66: void drawBlendedBitmap(SkCanvas* canvas, const SkPaint& paint,
int x) {
Naming nit:  this function doesn't do anything blending-related itself.  Rename
to drawClippedBitmap()?  drawBitmapClip()?

https://codereview.appspot.com/7060071/diff/3001/gm/lighting.cpp
File gm/lighting.cpp (right):

https://codereview.appspot.com/7060071/diff/3001/gm/lighting.cpp#newcode45
gm/lighting.cpp:45: void drawFilteredBitmap(SkCanvas* canvas, const SkPaint&
paint, int x, int y) {
As above:  this function doesn't do anything filter-related itself.  Rename to
drawClippedBitmap()?  drawBitmapClip()?

[junov, 2013-01-14 15:49:22]

Done.  
And I added and exclusion flag to exclude imagefiltersbase from scaled playback
since it was deliberately designed to cover drawSprite.

[Stephen White, 2013-01-14 16:22:30]

On 2013/01/14 15:49:22, junov wrote:
> Done.  
> And I added and exclusion flag to exclude imagefiltersbase from scaled
playback
> since it was deliberately designed to cover drawSprite.

LGTM