Allow framework-media to build the framework-media.impl

The framework-media java_sdk_library is currently api_only for legacy
reasons. This change allows it to also build the framework-media.impl
library by making the following changes:
* Adds impl_only_static_libs to allow the implementation to statically
  include other libraries, something no other java_sdk_library has
  needed to do.
* Passes the apex_availability property through to the impl library so
  it can be statically included in the updatable-media which is what is
  included in the apex, again for legacy reasons.

Bug: 190807367
Bug: 229932396
Test: m com.android.media media-module-sdk
      # Compare before and after this change (and corresponding change
      # to updatable-media/framework-media.
Change-Id: I9e1837edcca6f5fa84fc611274cf8fbba8a896b8

java/sdk_library.go

@@ -377,6 +377,9 @@ type sdkLibraryProperties struct {
 	// List of Java libraries that will be in the classpath when building the implementation lib
 	Impl_only_libs []string `android:"arch_variant"`
 
+	// List of Java libraries that will included in the implementation lib.
+	Impl_only_static_libs []string `android:"arch_variant"`
+
 	// List of Java libraries that will be in the classpath when building stubs
 	Stub_only_libs []string `android:"arch_variant"`
 
@@ -1346,10 +1349,12 @@ func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext)
 	visibility := childModuleVisibility(module.sdkLibraryProperties.Impl_library_visibility)
 
 	props := struct {
-		Name       *string
-		Visibility []string
-		Instrument bool
-		Libs       []string
+		Name           *string
+		Visibility     []string
+		Instrument     bool
+		Libs           []string
+		Static_libs    []string
+		Apex_available []string
 	}{
 		Name:       proptools.StringPtr(module.implLibraryModuleName()),
 		Visibility: visibility,
@@ -1358,6 +1363,12 @@ func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext)
 		// Set the impl_only libs. Note that the module's "Libs" get appended as well, via the
 		// addition of &module.properties below.
 		Libs: module.sdkLibraryProperties.Impl_only_libs,
+		// Set the impl_only static libs. Note that the module's "static_libs" get appended as well, via the
+		// addition of &module.properties below.
+		Static_libs: module.sdkLibraryProperties.Impl_only_static_libs,
+		// Pass the apex_available settings down so that the impl library can be statically
+		// embedded within a library that is added to an APEX. Needed for updatable-media.
+		Apex_available: module.ApexAvailable(),
 	}
 
 	properties := []interface{}{
@@ -1814,8 +1825,9 @@ func (module *SdkLibrary) CreateInternalModules(mctx android.DefaultableHookCont
 		*javaSdkLibraries = append(*javaSdkLibraries, module.BaseModuleName())
 	}
 
-	// Add the impl_only_libs *after* we're done using the Libs prop in submodules.
+	// Add the impl_only_libs and impl_only_static_libs *after* we're done using them in submodules.
 	module.properties.Libs = append(module.properties.Libs, module.sdkLibraryProperties.Impl_only_libs...)
+	module.properties.Static_libs = append(module.properties.Static_libs, module.sdkLibraryProperties.Impl_only_static_libs...)
 }
 
 func (module *SdkLibrary) InitSdkLibraryProperties() {