Remove the low hanging fruit with coord change matrices

BUG=skia:

Review URL: https://codereview.chromium.org/793013003
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index b4c020f..aa57669 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -860,13 +860,13 @@
         return false;
     }
 
-    if (!grp->localCoordChangeInverse(viewMatrix)) {
-        return false;
-    }
-
     grp->addCoverageProcessor(fp);
 
-    context->drawRect(*grp, SkMatrix::I(), rect);
+    SkMatrix inverse;
+    if (!viewMatrix.invert(&inverse)) {
+        return false;
+    }
+    context->drawNonAARectWithLocalMatrix(*grp, SkMatrix::I(), rect, inverse);
     return true;
 }
 
@@ -1142,13 +1142,13 @@
         return false;
     }
 
-    if (!grp->localCoordChangeInverse(viewMatrix)) {
-        return false;
-    }
-
     grp->addCoverageProcessor(fp);
 
-    context->drawRect(*grp, SkMatrix::I(), proxy_rect);
+    SkMatrix inverse;
+    if (!viewMatrix.invert(&inverse)) {
+        return false;
+    }
+    context->drawNonAARectWithLocalMatrix(*grp, SkMatrix::I(), proxy_rect, inverse);
     return true;
 }
 
diff --git a/src/gpu/GrBitmapTextContext.cpp b/src/gpu/GrBitmapTextContext.cpp
index 921c198..732a514 100755
--- a/src/gpu/GrBitmapTextContext.cpp
+++ b/src/gpu/GrBitmapTextContext.cpp
@@ -430,6 +430,7 @@
         }
     }
 
+    // If the glyph is too large we fall back to paths
     if (NULL == glyph->fPlot && !uploadGlyph(glyph, scaler)) {
         if (NULL == glyph->fPath) {
             SkPath* path = SkNEW(SkPath);
@@ -447,10 +448,10 @@
         SkMatrix translate;
         translate.setTranslate(SkFixedToScalar(vx - SkIntToFixed(glyph->fBounds.fLeft)),
                                SkFixedToScalar(vy - SkIntToFixed(glyph->fBounds.fTop)));
-        GrPaint tmpPaint(fPaint);
-        tmpPaint.localCoordChange(translate);
+        SkPath tmpPath(*glyph->fPath);
+        tmpPath.transform(translate);
         GrStrokeInfo strokeInfo(SkStrokeRec::kFill_InitStyle);
-        fContext->drawPath(tmpPaint, translate, *glyph->fPath, strokeInfo);
+        fContext->drawPath(fPaint, SkMatrix::I(), tmpPath, strokeInfo);
 
         // remove this glyph from the vertices we need to allocate
         fTotalVertexCount -= kVerticesPerGlyph;
diff --git a/src/gpu/GrDistanceFieldTextContext.cpp b/src/gpu/GrDistanceFieldTextContext.cpp
index a6cb285..8d993fa 100755
--- a/src/gpu/GrDistanceFieldTextContext.cpp
+++ b/src/gpu/GrDistanceFieldTextContext.cpp
@@ -535,6 +535,8 @@
     if (NULL == glyph->fPlot) {
         // needs to be a separate conditional to avoid over-optimization
         // on Nexus 7 and Nexus 10
+
+        // If the glyph is too large we fall back to paths
         if (!uploadGlyph(glyph, scaler)) {
             if (NULL == glyph->fPath) {
                 SkPath* path = SkNEW(SkPath);
@@ -552,13 +554,12 @@
             SkMatrix ctm;
             ctm.setScale(fTextRatio, fTextRatio);
             ctm.postTranslate(sx - dx, sy - dy);
-            GrPaint tmpPaint(fPaint);
-            tmpPaint.localCoordChange(ctm);
 
-            SkMatrix viewM = fViewMatrix;
-            viewM.preConcat(ctm);
+            SkPath tmpPath(*glyph->fPath);
+            tmpPath.transform(ctm);
+
             GrStrokeInfo strokeInfo(SkStrokeRec::kFill_InitStyle);
-            fContext->drawPath(tmpPaint, viewM, *glyph->fPath, strokeInfo);
+            fContext->drawPath(fPaint, fViewMatrix, tmpPath, strokeInfo);
 
             // remove this glyph from the vertices we need to allocate
             fTotalVertexCount -= kVerticesPerGlyph;