No more gradlew, instead get gradle during gclient sync (flutter#28264)

DEPS

@@ -450,6 +450,17 @@ deps = {
   'src/third_party/pkg/when':
   Var('dart_git') + '/when.git' + '@' + '0.2.0',
 
+  'src/gradle': {
+    'packages': [
+      {
+        'version': 'version:7.0.2',
+        'package': 'flutter/gradle'
+      }
+    ],
+    'condition': 'download_android_deps',
+    'dep_type': 'cipd'
+  },
+
   'src/third_party/android_tools/ndk': {
      'packages': [
        {

ci/licenses_golden/tool_signature

@@ -1,2 +1,2 @@
-Signature: e892e715f8184778851c5efcb6a1323a
+Signature: 42213051c23cf7aacd7319a315599219
 

testing/android_background_image/android/.gitignore

@@ -13,7 +13,3 @@
 /captures
 .externalNativeBuild
 .cache
-
-!gradlew
-!gradlew.bat
-!gradle/wrapper/**

testing/android_background_image/android/BUILD.gn

@@ -14,7 +14,7 @@ _android_sources = [
 gradle_task("android_lint") {
   app_name = "android_background_image"
   task = "lint"
-  gradlew_dir = rebase_path(".")
+  gradle_project_dir = rebase_path(".")
   sources = _android_sources
   outputs = [ "$root_out_dir/android_background_image/build/reports" ]
 
@@ -24,7 +24,7 @@ gradle_task("android_lint") {
 gradle_task("build_apk") {
   app_name = "android_background_image"
   task = "assembleDebug"
-  gradlew_dir = rebase_path(".")
+  gradle_project_dir = rebase_path(".")
   sources = _android_sources
   outputs = [ "$root_out_dir/android_background_image/app/outputs/apk/debug/app-debug.apk" ]
 

testing/rules/android.gni

@@ -9,8 +9,8 @@ template("gradle_task") {
     assert(defined(invoker.task), "task is a required parmaeter")
     assert(defined(invoker.outputs), "outputs is a required parameter")
     assert(defined(invoker.sources), "sources is a required parameter")
-    assert(defined(invoker.gradlew_dir),
-           "gradlew_dir is required (normally: rebase_path(\".\"")
+    assert(defined(invoker.gradle_project_dir),
+           "gradle_project_dir is required (normally: rebase_path(\".\"")
     assert(defined(invoker.app_name), "app_name is a required parameter")
 
     script = "//flutter/testing/rules/run_gradle.py"
@@ -20,7 +20,7 @@ template("gradle_task") {
     outputs = invoker.outputs
     out_dir = rebase_path("$root_out_dir/${invoker.app_name}")
     args = [
-      invoker.gradlew_dir,
+      invoker.gradle_project_dir,
       invoker.task,
       "--no-daemon",
       "-Pflutter_jar=" + rebase_path("$root_out_dir/flutter.jar"),

testing/rules/run_gradle.py

@@ -5,7 +5,7 @@
 # found in the LICENSE file.
 
 """
-Invokes gradlew for building the scenario_app from GN/Ninja.
+Invokes //gradle for building the Android apps from GN/Ninja.
 """
 
 import os
@@ -14,6 +14,11 @@
 import platform
 
 SCRIPT_PATH = os.path.dirname(os.path.realpath(__file__))
+
+BAT = '.bat' if sys.platform.startswith(('cygwin', 'win')) else ''
+GRADLE_BIN = os.path.normpath(os.path.join(SCRIPT_PATH, '..', '..', '..',
+    'gradle', 'bin', 'gradle%s' % BAT))
+
 ANDROID_HOME = os.path.normpath(os.path.join(SCRIPT_PATH, '..', '..', '..',
     'third_party', 'android_tools', 'sdk'))
 
@@ -28,11 +33,9 @@ def main():
   if not os.path.isdir(ANDROID_HOME):
     raise Exception('%s (ANDROID_HOME) is not a directory' % ANDROID_HOME)
 
-  BAT = '.bat' if sys.platform.startswith(('cygwin', 'win')) else ''
   android_dir = sys.argv[1]
-  gradle_bin = os.path.join('.', 'gradlew%s' % BAT)
-  result = subprocess.check_output(
-    args=[gradle_bin] + sys.argv[2:],
+  subprocess.check_output(
+    args=[GRADLE_BIN] + sys.argv[2:],
     cwd=android_dir,
     env=dict(os.environ, ANDROID_HOME=ANDROID_HOME, JAVA_HOME=JAVA_HOME),
   )