Change the type for byte counts to size_t in WebMediaPlayer

third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp

Index: third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp b/third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp
index b5ed951b2b0bdc21186ab55d21f0b55d24aa320f..8cef5df933fd2c74ceebca1c8d945fa8450ef26d 100644
--- a/third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLVideoElementTest.cpp
@@ -46,8 +46,8 @@ public:
     double mediaTimeForTimeValue(double timeValue) const override { return timeValue; };
     unsigned decodedFrameCount() const override { return 0; };
     unsigned droppedFrameCount() const override { return 0; };
-    unsigned audioDecodedByteCount() const override { return 0; };
-    unsigned videoDecodedByteCount() const override { return 0; };
+    size_t audioDecodedByteCount() const override { return 0; };
+    size_t videoDecodedByteCount() const override { return 0; };
     void paint(WebCanvas*, const WebRect&, unsigned char alpha, SkXfermode::Mode) override { };
 };