Add support for SweepGradient in the GL renderer.

Change-Id: I7aa397ed4e34655ead9ba1f5b4ce087665e0f022
diff --git a/libs/hwui/GradientCache.cpp b/libs/hwui/GradientCache.cpp
index 9957370..97f4cb4 100644
--- a/libs/hwui/GradientCache.cpp
+++ b/libs/hwui/GradientCache.cpp
@@ -116,7 +116,7 @@
     mCache.clear();
 }
 
-Texture* GradientCache::addLinearGradient(SkShader* shader, float* bounds, uint32_t* colors,
+Texture* GradientCache::addLinearGradient(SkShader* shader, uint32_t* colors,
         float* positions, int count, SkShader::TileMode tileMode) {
     SkBitmap bitmap;
     bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1024, 1);