[ChromeDriver] Enable several MobileEmulationCapabilityTest tests in HEAD

Bug 764519 was fixed so relevant disabled tests are now enabled by this commit.

Bug: 764519
Change-Id: I1af80b6ecbbf9548aeae8d5ab08641180dde9f2c
Reviewed-on: https://chromium-review.googlesource.com/894263Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Artur Khachatryan <khachatryan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533057}

chrome/test/chromedriver/test/run_py_tests.py

@@ -84,12 +84,7 @@ _NEGATIVE_FILTER = [
 ]
 
 _VERSION_SPECIFIC_FILTER = {}
-_VERSION_SPECIFIC_FILTER['HEAD'] = [
-    # https://bugs.chromium.org/p/chromium/issues/detail?id=764519
-    'MobileEmulationCapabilityTest.testDeviceName',
-    'MobileEmulationCapabilityTest.testNetworkConnectionTypeIsAppliedToAllTabs',
-    'MobileEmulationCapabilityTest.testNetworkConnectionTypeIsAppliedToAllTabsImmediately',
-]
+_VERSION_SPECIFIC_FILTER['HEAD'] = []
 
 _VERSION_SPECIFIC_FILTER['65'] = [
     # https://bugs.chromium.org/p/chromium/issues/detail?id=803678