Reland of Remove MockConstraints

components/test_runner/mock_web_user_media_client.cc

Index: components/test_runner/mock_web_user_media_client.cc
diff --git a/components/test_runner/mock_web_user_media_client.cc b/components/test_runner/mock_web_user_media_client.cc
index 4197a268e105f418bf8698d1ac58a536989f57ca..a5f8bdcbe76c7fdb72b5835db62261d0f31376fe 100644
--- a/components/test_runner/mock_web_user_media_client.cc
+++ b/components/test_runner/mock_web_user_media_client.cc
@@ -8,7 +8,6 @@
 
 #include "base/logging.h"
 #include "base/macros.h"
-#include "components/test_runner/mock_constraints.h"
 #include "components/test_runner/web_test_delegate.h"
 #include "third_party/WebKit/public/platform/WebMediaConstraints.h"
 #include "third_party/WebKit/public/platform/WebMediaDeviceInfo.h"
@@ -146,22 +145,6 @@ void MockWebUserMediaClient::requestUserMedia(
         return;
     }
 
-    WebMediaConstraints constraints = request.audioConstraints();
-    WebString failed_constraint;
-    if (!constraints.isNull() &&
-        !MockConstraints::VerifyConstraints(constraints, &failed_constraint)) {
-      delegate_->PostTask(new UserMediaRequestConstraintFailedTask(
-          this, request, failed_constraint));
-      return;
-    }
-    constraints = request.videoConstraints();
-    if (!constraints.isNull() &&
-        !MockConstraints::VerifyConstraints(constraints, &failed_constraint)) {
-      delegate_->PostTask(new UserMediaRequestConstraintFailedTask(
-          this, request, failed_constraint));
-      return;
-    }
-
     WebMediaStream stream;
     stream.initialize(WebVector<WebMediaStreamTrack>(),
                       WebVector<WebMediaStreamTrack>());