[Android] Run lint using a cache in the output directory.

build/config/android/internal_rules.gni

Index: build/config/android/internal_rules.gni
diff --git a/build/config/android/internal_rules.gni b/build/config/android/internal_rules.gni
index 732c98b8b3c7a2990762af32fe22e811af7998b5..655ca9c8cea23205170ce71d2d2f73fc2ee5664c 100644
--- a/build/config/android/internal_rules.gni
+++ b/build/config/android/internal_rules.gni
@@ -54,6 +54,11 @@ template("android_lint") {
       result_path,
     ]
 
+    if (!defined(deps)) {

[agrieve, 2016/03/19 00:12:54]

nit: you can save a couple lines if you put "deps = []" before
foward_variables_from.

[jbudorick, 2016/03/19 00:57:42]

Done.

+      deps = []
+    }
+    deps += [ "//build/android:prepare_lint_cache" ]
+
     rebased_java_files = rebase_path(java_files, root_build_dir)
 
     args = [