Fix RGB->YUV conversion: input is BGR instead of RGB.

remoting/base/encoder_vp8.cc

Index: remoting/base/encoder_vp8.cc
diff --git a/remoting/base/encoder_vp8.cc b/remoting/base/encoder_vp8.cc
index a0ba1972910f5330ffcf4efbecbd878621eb22b7..ea02addd3c35d45e6425cfdf684db95429304989 100644
--- a/remoting/base/encoder_vp8.cc
+++ b/remoting/base/encoder_vp8.cc
@@ -127,13 +127,13 @@ bool EncoderVp8::PrepareImage(scoped_refptr<CaptureData> capture_data) {
     for (int j = 0; j < capture_data->width(); ++j) {
       // Since the input pixel format is RGB32, there are 4 bytes per pixel.
       uint8* pixel = in + 4 * j;
-      y_out[j] = clip_byte(((pixel[0] * 66 + pixel[1] * 129 +
-                             pixel[2] * 25 + 128) >> 8) + 16);
+      y_out[j] = clip_byte(((pixel[2] * 66 + pixel[1] * 129 +
+                             pixel[0] * 25 + 128) >> 8) + 16);
       if (i % 2 == 0 && j % 2 == 0) {
-        u_out[j / 2] = clip_byte(((pixel[0] * -38 + pixel[1] * -74 +
-                                   pixel[2] * 112 + 128) >> 8) + 128);
-        v_out[j / 2] = clip_byte(((pixel[0] * 112 + pixel[1] * -94 +
-                                   pixel[2] * -18 + 128) >> 8) + 128);
+        u_out[j / 2] = clip_byte(((pixel[2] * -38 + pixel[1] * -74 +
+                                   pixel[0] * 112 + 128) >> 8) + 128);
+        v_out[j / 2] = clip_byte(((pixel[2] * 112 + pixel[1] * -94 +
+                                   pixel[1] * -18 + 128) >> 8) + 128);
       }
     }
     in += in_stride;