Themes: Get resources with an explicit theme attached.

Change-Id: If04e82a13250f520d70b58991586c8ce38f0ecb1
Don't log an error if we cannot open icon hash

The icons will end up being processed if we cannot access the hash
so let's just fail gracefully and silently.

Change-Id: I6368ee9bb47a9d52351fff22283ffac2de625b71
Themes: Set bounds on iconUpon

Change-Id: I90720b87ed6d5c30f342bd0e1c149e8a6e238d6e
tests: Hide new private APIs

Add missing @hide
This should have been done in If04e82a13250f520d70b58991586c8ce38f0ecb1 to avoid

/opt/jenkins/android/workspace/android/cm-11.0/out/target/common/obj/PACKAGING/public_api.txt:24102:
error 4: Added public method android.test.mock.MockPackageManager.getThemedResourcesForApplication
/opt/jenkins/android/workspace/android/cm-11.0/out/target/common/obj/PACKAGING/public_api.txt:24103:
error 4: Added public method android.test.mock.MockPackageManager.getThemedResourcesForApplication

Change-Id: Ib40279065c937b130322350c1dbdf5b0b43506e3