Restore the file mode for source files

This was changed in 21be9122aadf7824efe3fc19b2a09ff253a688e1.

Change-Id: I6c04dc92f673557e10c231bd090ec8aa88b6bee4
Reviewed-on: https://chromium-review.googlesource.com/1146183
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
diff --git a/include/libyuv/rotate_row.h b/include/libyuv/rotate_row.h
old mode 100755
new mode 100644
diff --git a/include/libyuv/row.h b/include/libyuv/row.h
old mode 100755
new mode 100644
diff --git a/include/libyuv/scale_row.h b/include/libyuv/scale_row.h
old mode 100755
new mode 100644
diff --git a/source/compare.cc b/source/compare.cc
old mode 100755
new mode 100644
diff --git a/source/convert_argb.cc b/source/convert_argb.cc
old mode 100755
new mode 100644
diff --git a/source/convert_from_argb.cc b/source/convert_from_argb.cc
old mode 100755
new mode 100644
diff --git a/source/planar_functions.cc b/source/planar_functions.cc
old mode 100755
new mode 100644
diff --git a/source/rotate.cc b/source/rotate.cc
old mode 100755
new mode 100644
diff --git a/source/rotate_any.cc b/source/rotate_any.cc
old mode 100755
new mode 100644
diff --git a/source/rotate_argb.cc b/source/rotate_argb.cc
old mode 100755
new mode 100644
diff --git a/source/row_any.cc b/source/row_any.cc
old mode 100755
new mode 100644
diff --git a/source/scale.cc b/source/scale.cc
old mode 100755
new mode 100644
diff --git a/source/scale_any.cc b/source/scale_any.cc
old mode 100755
new mode 100644
diff --git a/source/scale_argb.cc b/source/scale_argb.cc
old mode 100755
new mode 100644
diff --git a/unit_test/scale_test.cc b/unit_test/scale_test.cc
old mode 100755
new mode 100644