Revert of Don't use barcodes in ProtocolPerfTests

remoting/test/frame_generator_util.cc

Index: remoting/test/frame_generator_util.cc
diff --git a/remoting/test/frame_generator_util.cc b/remoting/test/frame_generator_util.cc
index bf78b0f14ae415af1c2a53d9d4c7a46d4efded32..c84115a482a8a24f4a8024169f95de0df1b48bff 100644
--- a/remoting/test/frame_generator_util.cc
+++ b/remoting/test/frame_generator_util.cc
@@ -14,6 +14,14 @@
 
 namespace remoting {
 namespace test {
+
+namespace {
+const int kBarcodeCellWidth = 8;
+const int kBarcodeCellHeight = 8;
+const int kBarcodeBits = 10;
+const int kBarcodeBlackThreshold = 85;
+const int kBarcodeWhiteThreshold = 170;
+}  // namespace
 
 std::unique_ptr<webrtc::DesktopFrame> LoadDesktopFrameFromPng(
     const char* name) {
@@ -51,5 +59,47 @@
   }
 }
 
+void DrawBarcode(int value, bool changed, webrtc::DesktopFrame* frame) {
+  CHECK(value < (1 << kBarcodeBits));
+  for (int i = 0; i < kBarcodeBits; ++i) {
+    DrawRect(frame, webrtc::DesktopRect::MakeXYWH(i * kBarcodeCellWidth, 0,
+                                                  kBarcodeCellWidth,
+                                                  kBarcodeCellHeight),
+             (value & 1) ? 0xffffffff : 0xff000000);
+    value >>= 1;
+  }
+  if (changed) {
+    frame->mutable_updated_region()->AddRect(webrtc::DesktopRect::MakeXYWH(
+        0, 0, kBarcodeCellWidth * kBarcodeBits, kBarcodeCellHeight));
+  }
+}
+
+int ReadBarcode(const webrtc::DesktopFrame& frame) {
+  int result = 0;
+  for (int i = kBarcodeBits - 1; i >= 0; --i) {
+    // Sample barcode in the center of the cell for each bit.
+    int x = i * kBarcodeCellWidth + kBarcodeCellWidth / 2;
+    int y = kBarcodeCellHeight / 2;
+    uint8_t* data = frame.GetFrameDataAtPos(webrtc::DesktopVector(x, y));
+    int b = data[0];
+    int g = data[1];
+    int r = data[2];
+    bool bit = 0;
+    if (b > kBarcodeWhiteThreshold && g > kBarcodeWhiteThreshold &&
+        r > kBarcodeWhiteThreshold) {
+      bit = 1;
+    } else if (b < kBarcodeBlackThreshold && g < kBarcodeBlackThreshold &&
+        r < kBarcodeBlackThreshold) {
+      bit = 0;
+    } else {
+      LOG(FATAL) << "Invalid barcode.";
+    }
+    result <<= 1;
+    if (bit)
+      result |= 1;
+  }
+  return result;
+}
+
 }  // namespace test
 }  // namespace remoting