Update EncryptedMediaTest.FrameSizeChangeVideo to be disabled for LMR1 builds.

The bots have been updated to 5.1.1, which is LOLLIPOP_MR1.  This just
disables the test for anything pre-marshmallow.

Example failure:
https://ci.chromium.org/p/chromium/builders/ci/Lollipop%20Phone%20Tester/21211

../../content/browser/media/media_browsertest.cc:55: Failure
Expected equality of these values:
  expected_title
    Which is: "ENDED"
  final_title
    Which is: "error"
Stack trace:

[WARNING:discardable_shared_memory_manager.cc(410)] Some MojoDiscardableSharedMemoryManagerImpls are still alive. They will be leaked.
[  FAILED  ] MSE_ExternalClearKey/EncryptedMediaTest.FrameSizeChangeVideo/0, where GetParam() = (0x9d970a3b pointing to "org.chromium.externalclearkey", 4-byte object <01-00 00-00>) (5931 ms)
[----------] 1 test from MSE_ExternalClearKey/EncryptedMediaTest (5937 ms total)

TBR=liberato@chromium.org
BUG=778245

Change-Id: I6816cbabedd6c6a60b139e494b9dae35164f07b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1540304Reviewed-by: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Frank Liberato <liberato@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#644529}

content/browser/media/encrypted_media_browsertest.cc

@@ -330,8 +330,8 @@ IN_PROC_BROWSER_TEST_P(EncryptedMediaTest,
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, FrameSizeChangeVideo) {
 #if defined(OS_ANDROID)
   // https://crbug.com/778245
-  if (base::android::BuildInfo::GetInstance()->sdk_int() <=
-      base::android::SDK_VERSION_LOLLIPOP) {
+  if (base::android::BuildInfo::GetInstance()->sdk_int() <
+      base::android::SDK_VERSION_MARSHMALLOW) {
     DVLOG(0) << "Skipping test - FrameSizeChange is flaky on KitKat and "
                 "Lollipop devices.";
     return;