Add Histogram Macros to Skia

src/gpu/SkGpuDevice_drawTexture.cpp

Index: src/gpu/SkGpuDevice_drawTexture.cpp
diff --git a/src/gpu/SkGpuDevice_drawTexture.cpp b/src/gpu/SkGpuDevice_drawTexture.cpp
index efbc6c98d599587e08bc28578b91f903e853b443..7eae7d8abe10afa3c0d5b976c182f3f259529554 100644
--- a/src/gpu/SkGpuDevice_drawTexture.cpp
+++ b/src/gpu/SkGpuDevice_drawTexture.cpp
@@ -14,6 +14,7 @@
 #include "GrTextureParamsAdjuster.h"
 #include "SkDraw.h"
 #include "SkGrPriv.h"
+#include "SkHistogramLogging.h"
 #include "SkMaskFilter.h"
 #include "effects/GrBicubicEffect.h"
 #include "effects/GrSimpleTextureEffect.h"
@@ -94,6 +95,9 @@ void SkGpuDevice::drawTextureProducer(GrTextureProducer* producer,
                                       const SkMatrix& viewMatrix,
                                       const GrClip& clip,
                                       const SkPaint& paint) {
+    // This is the funnel for all non-tiled bitmap/image draw calls. Log a histogram entry.
+    SK_HISTOGRAM_BOOLEAN("DrawTiled", false);
+
     // Figure out the actual dst and src rect by clipping the src rect to the bounds of the
     // adjuster. If the src rect is clipped then the dst rect must be recomputed. Also determine
     // the matrix that maps the src rect to the dst rect.