Change clear() to respect the clip

src/pdf/SkPDFDevice.cpp

Index: src/pdf/SkPDFDevice.cpp
diff --git a/src/pdf/SkPDFDevice.cpp b/src/pdf/SkPDFDevice.cpp
index fb8df838eb72644beb5c8b08753f07cb58a5820f..6592ba0c68477ffc96f4153e58c95a3866bd6a5f 100644
--- a/src/pdf/SkPDFDevice.cpp
+++ b/src/pdf/SkPDFDevice.cpp
@@ -801,20 +801,6 @@ void SkPDFDevice::cleanUp(bool clearFontUsage) {
     }
 }
 
-void SkPDFDevice::clear(SkColor color) {
-    this->cleanUp(true);
-    this->init();
-
-    SkPaint paint;
-    paint.setColor(color);
-    paint.setStyle(SkPaint::kFill_Style);
-    SkMatrix identity;
-    identity.reset();
-    ScopedContentEntry content(this, &fExistingClipStack, fExistingClipRegion,
-                               identity, paint);
-    internalDrawPaint(paint, content.entry());
-}
-
 void SkPDFDevice::drawPaint(const SkDraw& d, const SkPaint& paint) {
     SkPaint newPaint = paint;
     newPaint.setStyle(SkPaint::kFill_Style);