Refactor KeySystems code to call a function to populate the info. (relanding r221932)

content/renderer/media/crypto/key_systems_unittest.cc

Index: content/renderer/media/crypto/key_systems_unittest.cc
diff --git a/content/renderer/media/crypto/key_systems_unittest.cc b/content/renderer/media/crypto/key_systems_unittest.cc
index 247eb122adf53265fe367629c449abd90cce37e8..aef3fc5b279c60d9b753d3b77debb8774733923a 100644
--- a/content/renderer/media/crypto/key_systems_unittest.cc
+++ b/content/renderer/media/crypto/key_systems_unittest.cc
@@ -5,6 +5,8 @@
 #include <string>
 #include <vector>
 
+#include "content/public/common/content_client.h"
+#include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/media/crypto/key_systems.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ -138,6 +140,8 @@ class KeySystemsTest : public testing::Test {
 
     mixed_codecs_.push_back("vorbis");
     mixed_codecs_.push_back("avc1");
+
+    SetRendererClientForTesting(&content_renderer_client_);
   }
 
   typedef std::vector<std::string> CodecVector;
@@ -185,6 +189,7 @@ class KeySystemsTest : public testing::Test {
 
   CodecVector mixed_codecs_;
 
+  ContentRendererClient content_renderer_client_;
 };
 
 TEST_F(KeySystemsTest, ClearKey_Basic) {