clean up compilation warnings

change from a blanket 'using namespace...' directive to a more
explicit qualification on the entities that prompted adding the using in
the first place.

Bug: 128606338
Test: compilation
Change-Id: Id8c8cfcd18801661b82b73d1c59952d1e75d3c7d
diff --git a/services/mediaanalytics/MediaAnalyticsService.cpp b/services/mediaanalytics/MediaAnalyticsService.cpp
index 4f3ac1b..06baac9 100644
--- a/services/mediaanalytics/MediaAnalyticsService.cpp
+++ b/services/mediaanalytics/MediaAnalyticsService.cpp
@@ -76,9 +76,6 @@
 
 namespace android {
 
-    using namespace android::base;
-    using namespace android::content::pm;
-
 // individual records kept in memory: age or count
 // age: <= 28 hours (1 1/6 days)
 // count: hard limit of # records
@@ -649,7 +646,8 @@
         }
 
         if (binder != NULL) {
-            sp<IPackageManagerNative> package_mgr = interface_cast<IPackageManagerNative>(binder);
+            sp<content::pm::IPackageManagerNative> package_mgr =
+                            interface_cast<content::pm::IPackageManagerNative>(binder);
             binder::Status status;
 
             std::vector<int> uids;