Add AAR support to Chrome and convert support libraries to using AARs

content/public/android/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 
 content_jni_gypi_values = exec_script("//build/gypi_to_gn.py",
                                       [ rebase_path("../../content_jni.gypi") ],
                                       "scope",
@@ skipping 32 matching lines @@
     "//device/vr:java",
     "//media/base/android:media_java",
     "//media/capture/content/android:screen_capture_java",
     "//media/capture/video/android:capture_java",
     "//media/midi:midi_java",
     "//mojo/android:system_java",
     "//mojo/public/java:bindings",
     "//mojo/public/java:system",
     "//net/android:net_java",
     "//third_party/WebKit/public:blink_headers_java",
+    "//third_party/android_tools:android_support_annotations_java",
     "//third_party/android_tools:android_support_v13_java",

[Ian Wen, 2016/07/15 01:36:21]

Q: In third_party/android, I already made v13 to depend on annotations and v4.
Why is that I have to specifically say them again in all the places that
references v13?

If I remove annotations and v4, this won't compile.

[agrieve, 2016/07/15 14:34:41]

When compiling, we set the classpath only to direct dependents. If we wanted
though, we could actually make this work using:

java_group("support_v13_java") {
  deps = [ ":support_v13_for_realz", ":support_v4", ":support_annotations" ]
}

+    "//third_party/android_tools:android_support_v4_java",
     "//third_party/jsr-305:jsr_305_javalib",
     "//ui/accessibility:ui_accessibility_java",
     "//ui/android:ui_java",
 
     #"//content:content_common",
   ]
 
   srcjar_deps = [
     ":common_aidl",
     ":content_public_android_java_enums_srcjar",
@@ skipping 327 matching lines @@
     "junit/src/org/chromium/content/browser/input/TextInputStateTest.java",
     "junit/src/org/chromium/content/browser/input/ThreadedInputConnectionTest.java",
     "junit/src/org/chromium/content/browser/BindingManagerImplTest.java",
   ]
   deps = [
     ":content_java",
     "//base:base_java",
     "//base:base_java_test_support",
   ]
 }