Bug 833508 - pre: Make SyncConfiguration.infoBaseURL protected and fix TestFreshStart.testLiveFreshStart.
Bug 833508 - pre: Make some SyncAdapter members private.
Bug 833508 - pre: Delete on-device TestGlobalSession.

These tests duplicated existing unit-tests.
Bug 833508 - Use GlobalSession.getSyncStagesByName in resetStagesByName.
Bug 833508 - Make GlobalSession.{wipeStages,resetStages} not be static.
Bug 833508 - Make GlobalSyncStage.{execute,resetLocal,wipeLocal} take GlobalSession argument.

Add AbstractSessionManagingSyncStage for managing GlobalSession parameter.
Bug 833508 - Remove GlobalSession argument to GlobalSyncStage constructors.
Bug 833508 - post: Remove FetchInfoCollectionsStage reference from TestGlobalSession.
Bug 833508 - post: Make MockAbstractNonRepositorySyncStage for rooting AbstractNonRepositorySyncStage test classes.
Bug 833508 - post: Add MockGlobalSession.withStage and use it in tests.