blimp: Move BlimpCompositor to use delegated rendering.

blimp/BUILD.gn

Index: blimp/BUILD.gn
diff --git a/blimp/BUILD.gn b/blimp/BUILD.gn
index 01b232ab2761946bf2a1c934618163a4bf8b0acd..74acf4dbf8edaacb934713b2970557c8aec092ac 100644
--- a/blimp/BUILD.gn
+++ b/blimp/BUILD.gn
@@ -6,6 +6,11 @@ import("//build/config/chrome_build.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
+if (is_android) {
+  import("//build/config/android/config.gni")
+  import("//build/config/android/rules.gni")
+}
+
 # Convenience meta-target for all of Blimp's production & test code.
 group("blimp") {
   # In spite of the name, this really just means that non-test targets
@@ -73,6 +78,35 @@ test("blimp_unittests") {
   if (is_linux) {
     deps += [ "//blimp/engine:unit_tests" ]
   }
+
+  if (is_android) {
+    deps += [ ":blimp_unittests_java_deps" ]
+  }
+}
+
+if (is_android) {
+  # This is the list of targets that the tests need to depend on in order to add
+  # the java classes for their native counterparts to the test apk.
+  # We could directly include them in the test target, but in order to
+  # keep the visibility of the //blimp/client/core:core_java target restricted,
+  # we make it visible to this group (which is testonly) and depend on this
+  # group instead.
+  # We could not add ":blimp_unittests" to the visibility list of
+  # //blimp/client/core:core_java, since the targets that actually need to
+  # depend on it are generated by the test template (see testing/test.gni). So
+  # it was better to add this indirection and expose it to this testonly target,
+  # which can be used in this file only.
+  java_group("blimp_unittests_java_deps") {
+    testonly = true
+    visibility = [ ":*" ]
+
+    deps = [
+      "//base:base_java",
+      "//blimp/client/core:core_java",
+      "//net/android:net_java",
+      "//ui/android:ui_java",
+    ]
+  }
 }
 
 if (is_linux) {