Add filegroup support to notice property.

Also, replace all notice file references with the parent directory
pattern(../) with filegroups.

Bug: 118899640
Test: Manual build
Change-Id: I841345d747f41a3bb5beea66ad87a979734c39a4

Android.bp

@@ -435,7 +435,7 @@ toolchain_library {
             src: "prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/x86_64-w64-mingw32/lib/libwinpthread.a",
         },
     },
-    notice: "../../prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/licenses/mingw-w64-svn-r5861/mingw-w64-libraries/winpthreads/COPYING",
+    notice: ":mingw-libwinpthread-notice",
 }
 
 toolchain_library {

android/androidmk.go

@@ -277,8 +277,8 @@ func translateAndroidModule(ctx SingletonContext, w io.Writer, mod blueprint.Mod
 		}
 	}
 
-	if amod.commonProperties.Notice != nil {
-		fmt.Fprintln(&data.preamble, "LOCAL_NOTICE_FILE :=", "$(LOCAL_PATH)/"+*amod.commonProperties.Notice)
+	if amod.noticeFile != nil {
+		fmt.Fprintln(&data.preamble, "LOCAL_NOTICE_FILE :=", amod.noticeFile.String())
 	}
 
 	if host {

android/module.go

@@ -441,6 +441,7 @@ type ModuleBase struct {
 	noAddressSanitizer bool
 	installFiles       Paths
 	checkbuildFiles    Paths
+	noticeFile         Path
 
 	// Used by buildTargetSingleton to create checkbuild and per-directory build targets
 	// Only set on the final variant of each module
@@ -789,6 +790,11 @@ func (a *ModuleBase) GenerateBuildActions(blueprintCtx blueprint.ModuleContext)
 
 		a.installFiles = append(a.installFiles, ctx.installFiles...)
 		a.checkbuildFiles = append(a.checkbuildFiles, ctx.checkbuildFiles...)
+
+		if a.commonProperties.Notice != nil {
+			// For filegroup-based notice file references.
+			a.noticeFile = ctx.ExpandSource(*a.commonProperties.Notice, "notice")
+		}
 	}
 
 	if a == ctx.FinalModule().(Module).base() {

android/mutator.go

@@ -207,6 +207,11 @@ func (mutator *mutator) Parallel() MutatorHandle {
 func depsMutator(ctx BottomUpMutatorContext) {
 	if m, ok := ctx.Module().(Module); ok && m.Enabled() {
 		m.DepsMutator(ctx)
+
+		// For filegroup-based notice file references.
+		if m.base().commonProperties.Notice != nil {
+			ExtractSourceDeps(ctx, m.base().commonProperties.Notice)
+		}
 	}
 }