Revert of Skia Filter Quality and Scaling Metrics

src/core/SkDevice.cpp

Index: src/core/SkDevice.cpp
diff --git a/src/core/SkDevice.cpp b/src/core/SkDevice.cpp
index 4d4470c048e5fa7f872db02cf1f984b8e434630b..78aa3ee52f9bcbd2419cf69db5016b16ae1534c3 100644
--- a/src/core/SkDevice.cpp
+++ b/src/core/SkDevice.cpp
@@ -442,57 +442,3 @@
     return flags;
 }
 
-//////////////////////////////////////////////////////////////////////////////////////////
-
-void SkBaseDevice::LogDrawScaleFactor(const SkMatrix& matrix, SkFilterQuality filterQuality) {
-#if SK_HISTOGRAMS_ENABLED
-    enum ScaleFactor {
-        kUpscale_ScaleFactor,
-        kNoScale_ScaleFactor,
-        kDownscale_ScaleFactor,
-        kLargeDownscale_ScaleFactor,
-    };
-
-    SkASSERT(filterQuality != kNone_SkFilterQuality);
-    enum { kScaleFactorCount = kLargeDownscale_ScaleFactor + 1 };
-    float rawScaleFactor = matrix.getMinScale();
-
-    ScaleFactor scaleFactor;
-    if (rawScaleFactor < 0.5f) {
-        scaleFactor = kLargeDownscale_ScaleFactor;
-    } else if (rawScaleFactor < 1.0f) {
-        scaleFactor = kDownscale_ScaleFactor;
-    } else if (rawScaleFactor > 1.0f) {
-        scaleFactor = kUpscale_ScaleFactor;
-    } else {
-        scaleFactor = kNoScale_ScaleFactor;
-    }
-
-    switch (filterQuality) {
-        case kNone_SkFilterQuality:
-            SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.NoneFilterQuality", scaleFactor,
-                                     kScaleFactorCount);
-            break;
-        case kLow_SkFilterQuality:
-            SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.LowFilterQuality", scaleFactor,
-                                     kScaleFactorCount);
-            break;
-        case kMedium_SkFilterQuality:
-            SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.MediumFilterQuality", scaleFactor,
-                                     kScaleFactorCount);
-            break;
-        case kHigh_SkFilterQuality:
-            SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.HighFilterQuality", scaleFactor,
-                                     kScaleFactorCount);
-            break;
-    }
-
-    // Also log filter quality independent scale factor.
-    SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.AnyFilterQuality", scaleFactor, kScaleFactorCount);
-
-    // Also log an overall histogram of filter quality.
-    enum { kFilterQualityCount = kHigh_SkFilterQuality + 1 };
-    SK_HISTOGRAM_ENUMERATION("FilterQuality", filterQuality, kFilterQualityCount);
-#endif
-}
-