Merge "tests: fix Continue() signatures"

diff --cc test/keyframe_test.cc
index 4244f6129660e916b5e2473786d40cbdaba5bcb3,a7e87a12d938c4c6028fbc3fccd8f39232862b7a..19c715238af0c91839a60c079d2cc431f59fdd21
--- 1/test/keyframe_test.cc
--- 2/test/keyframe_test.cc
+++ b/test/keyframe_test.cc
@@@ -24,10 -24,9 +24,10 @@@ class KeyframeTest : public ::libvpx_te
      kf_count_ = 0;
      kf_count_max_ = INT_MAX;
      kf_do_force_kf_ = false;
 +    set_cpu_used_ = 0;
    }
  
-   virtual bool Continue() {
+   virtual bool Continue() const {
      return !HasFatalFailure() && !abort_;
    }