Use filter_packages to unbunden metalava

This change fixes a problem that entire framework source files are given
to metalava even when many of the source files are not for public. Using
the new property filter_packages, only source files that belongs to the
public packages are given to metalava.

This CL also changes the name of the filegroup 'framework-srcs' to
'framework-non-updatable-sources' to better describe its contents. In
addition, a build-time only library 'framework-all' is introduced. This
library produces a header jar for all framework sources for both
non-updatable and updatable parts. It is put to the classpath when
invoking metalava to give information on the hidden classes that were
filtered-out.

Bug: 140764681
Test: m
Change-Id: I6e16679109ac07820e35037754d4327442c014f2

Android.bp

@@ -163,7 +163,7 @@ filegroup {
 }
 
 filegroup {
-    name: "framework-srcs",
+    name: "framework-non-updatable-sources",
     srcs: [
         // Java/AIDL sources under frameworks/base
         ":framework-core-sources",
@@ -211,6 +211,14 @@ filegroup {
     ],
 }
 
+filegroup {
+    name: "framework-all-sources",
+    srcs: [
+        ":framework-non-updatable-sources",
+        ":updatable-media-srcs",
+    ],
+}
+
 java_defaults {
     name: "framework-aidl-export-defaults",
     aidl: {
@@ -283,15 +291,12 @@ java_defaults {
     defaults: ["framework-aidl-export-defaults"],
     installable: true,
 
-    srcs: [
-        ":framework-srcs",
-        "core/java/**/*.logtags",
-    ],
-
     aidl: {
         generate_get_transaction_name: true,
     },
 
+    srcs: ["core/java/**/*.logtags"],
+
     exclude_srcs: [
         // See comment on framework-atb-backward-compatibility module below
         "core/java/android/content/pm/AndroidTestBaseUpdater.java",
@@ -356,6 +361,7 @@ filegroup {
 java_library {
     name: "framework",
     defaults: ["framework-defaults"],
+    srcs: [":framework-non-updatable-sources"],
     javac_shard_size: 150,
     required: [
         "framework-platform-compat-config",
@@ -364,9 +370,17 @@ java_library {
     ],
 }
 
+java_library {
+    name: "framework-all",
+    defaults: ["framework-defaults"],
+    srcs: [":framework-all-sources"],
+    installable: false,
+}
+
 java_library {
     name: "framework-annotation-proc",
     defaults: ["framework-defaults"],
+    srcs: [":framework-all-sources"],
     installable: false,
     plugins: [
         "unsupportedappusage-annotation-processor",
@@ -878,10 +892,21 @@ metalava_framework_docs_args += " --replace-documentation " +
     // replacement (with $1, $2 backreferences to the regex groups)
     "'$$1https://docs.oracle.com/javase/8/docs/$$2\">' "
 
+packages_to_document = [
+    "android",
+    "java",
+    "javax",
+    "org.apache.http",
+    "org.json",
+    "org.w3c.dom",
+    "org.xml.sax",
+    "org.xmlpull",
+]
+
 stubs_defaults {
     name: "framework-doc-stubs-default",
     srcs: [
-        ":framework-srcs",
+        ":framework-non-updatable-sources",
         "core/java/**/*.logtags",
         "test-base/src/**/*.java",
         ":opt-telephony-srcs",
@@ -945,7 +970,7 @@ doc_defaults {
 stubs_defaults {
     name: "metalava-api-stubs-default",
     srcs: [
-        ":framework-srcs",
+        ":framework-non-updatable-sources",
         "core/java/**/*.logtags",
         ":opt-telephony-srcs",
         ":opt-net-voip-srcs",
@@ -967,6 +992,7 @@ stubs_defaults {
         "api-versions-jars-dir",
     ],
     sdk_version: "core_platform",
+    filter_packages: packages_to_document,
 }
 
 droidstubs {
@@ -1465,7 +1491,7 @@ filegroup {
 // annotations to private apis
 aidl_mapping {
     name: "framework-aidl-mappings",
-    srcs: [":framework-srcs"],
+    srcs: [":framework-all-sources"],
     output: "framework-aidl-mappings.txt",
 }
 

location/lib/Android.bp

@@ -18,7 +18,7 @@ java_sdk_library {
     name: "com.android.location.provider",
     srcs: [
         "java/**/*.java",
-        ":framework-srcs",
+        ":framework-all-sources",
     ],
     api_packages: ["com.android.location.provider"],
 }

media/lib/signer/Android.bp

@@ -18,7 +18,7 @@ java_sdk_library {
     name: "com.android.mediadrm.signer",
     srcs: [
         "java/**/*.java",
-        ":framework-srcs",
+        ":framework-all-sources",
     ],
     api_packages: ["com.android.mediadrm.signer"],
 }

test-mock/Android.bp

@@ -21,7 +21,7 @@ java_sdk_library {
 
     srcs: [
         "src/**/*.java",
-        ":framework-srcs",
+        ":framework-all-sources",
     ],
 
     api_packages: [