Never run errorprone on non-Chromium code.

If errorprone finds an error in non-Chromium code the build will
fail. This shouldn't happen, so I am disabling errorprone on
non-Chromium code.

BUG=

Review URL: https://codereview.chromium.org/1314493010

Cr-Original-Commit-Position: refs/heads/master@{#345941}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: bb9e4863c7dd58c17fd53cd025f7f0dad17a52a5

config/android/internal_rules.gni

@@ -1033,7 +1033,9 @@ template("compile_java") {
   }
 
   _enable_errorprone = use_errorprone_java_compiler
-  if (defined(invoker.enable_errorprone)) {
+  if (!_chromium_code) {
+    _enable_errorprone = false
+  } else if (defined(invoker.enable_errorprone)) {
     _enable_errorprone = invoker.enable_errorprone
   }
 

host_jar.gypi

@@ -53,7 +53,12 @@
     'jar_path': '<(jar_dir)/<(jar_name)',
     'main_class%': '',
     'stamp': '<(intermediate_dir)/jar.stamp',
-    'enable_errorprone%': '0',
+    'conditions': [
+      ['chromium_code == 0', {
+        'enable_errorprone': 0,
+      }],
+    ],
+    'enable_errorprone%': 0,
     'errorprone_exe_path': '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
   },
   'all_dependent_settings': {

java.gypi

@@ -83,8 +83,6 @@
     'java_in_dir_suffix%': '/src',
     'proguard_config%': '',
     'proguard_preprocess%': '0',
-    'enable_errorprone%': '0',
-    'errorprone_exe_path': '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
     'variables': {
       'variables': {
         'proguard_preprocess%': 0,
@@ -105,6 +103,13 @@
     },
     'emma_instrument': '<(emma_instrument)',
     'javac_jar_path': '<(javac_jar_path)',
+    'conditions': [
+      ['chromium_code == 0', {
+        'enable_errorprone': 0,
+      }],
+    ],
+    'enable_errorprone%': 0,
+    'errorprone_exe_path': '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
   },
   'conditions': [
     ['add_to_dependents_classpaths == 1', {

java_apk.gypi

@@ -223,7 +223,12 @@
     'native_lib_placeholders': [],
     'main_apk_name': '<(apk_name)',
     'dex_path': '<(dex_path)',
-    'enable_errorprone%': '0',
+    'conditions': [
+      ['chromium_code == 0', {
+        'enable_errorprone': 0,
+      }],
+    ],
+    'enable_errorprone%': 0,
     'errorprone_exe_path': '<(PRODUCT_DIR)/bin.java/chromium_errorprone',
   },
   # Pass the jar path to the apk's "fake" jar target.  This would be better as