[Android] Enable multidex for debug builds of ChromePublic.

build/java_apk.gypi

Index: build/java_apk.gypi
diff --git a/build/java_apk.gypi b/build/java_apk.gypi
index 174ec4d4da9769087ff44df5bae2de3daab58e47..6b0023eba5af70b2842754d33ec50912309fd6d3 100644
--- a/build/java_apk.gypi
+++ b/build/java_apk.gypi
@@ -84,8 +84,6 @@
     'library_jars_paths': [],
     'input_jars_paths': [],
     'library_dexed_jars_paths': [],
-    'main_dex_list_path': '<(intermediate_dir)/main_dex_list.txt',
-    'main_dex_list_paths': ['<(main_dex_list_path)'],
     'additional_src_dirs': [],
     'generated_src_dirs': [],
     'app_manifest_version_name%': '<(android_app_version_name)',
@@ -146,6 +144,9 @@
     'obfuscated_jar_path': '<(intermediate_dir)/obfuscated.jar',
     'test_jar_path': '<(PRODUCT_DIR)/test.lib.java/<(apk_name).jar',
     'enable_multidex%': 0,
+    'enable_multidex_configurations%': [],
+    'multidex_configuration_path': '<(intermediate_dir)/multidex_config.json',
+    'main_dex_list_path': '<(intermediate_dir)/main_dex_list.txt',
     'emma_device_jar': '<(android_sdk_root)/tools/lib/emma_device.jar',
     'android_manifest_path%': '<(java_in_dir)/AndroidManifest.xml',
     'split_android_manifest_path': '<(intermediate_dir)/split-manifests/<(android_app_abi)/AndroidManifest.xml',
@@ -509,7 +510,6 @@
             'libraries_top_dir': '<(intermediate_dir)/lib.stripped',
             'libraries_source_dir': '<(libraries_top_dir)/lib/<(android_app_abi)',
             'device_library_dir': '<(device_intermediate_dir)/lib.stripped',
-            'configuration_name': '<(CONFIGURATION_NAME)',
           },
           'dependencies': [
             '<(DEPTH)/build/android/setup.gyp:get_build_device_configurations',
@@ -747,7 +747,7 @@
       'dependencies': [
         '<(DEPTH)/build/android/pylib/device/commands/commands.gyp:chromium_commands',
         '<(DEPTH)/tools/android/android_tools.gyp:android_tools',
-      ]
+      ],
     }],
     ['run_findbugs == 1', {
       'actions': [
@@ -786,6 +786,38 @@
         },
       ],
     }],
+    ['enable_multidex == 1', {
+      'actions': [
+        {
+          'action_name': 'main_dex_list_for_<(_target_name)',
+          'variables': {
+            'jar_paths': ['>@(input_jars_paths)', '<(javac_jar_path)'],
+            'output_path': '<(main_dex_list_path)',
+          },
+          'includes': [ 'android/main_dex_action.gypi' ],
+        },
+        {
+          'action_name': 'configure_multidex_for_<(_target_name)',
+          'inputs': [
+            '<(DEPTH)/build/android/gyp/configure_multidex.py',
+          ],
+          'outputs': [
+            '<(multidex_configuration_path)',
+          ],
+          'variables': {
+            'additional_multidex_config_options': [],
+            'enabled_configurations': ['>@(enable_multidex_configurations)'],
+          },
+          'action': [
+            'python', '<(DEPTH)/build/android/gyp/configure_multidex.py',
+            '--configuration-name', '<(CONFIGURATION_NAME)',
+            '--enabled-configurations', '<(enabled_configurations)',
+            '--multidex-configuration-path', '<(multidex_configuration_path)',
+            '>@(additional_multidex_config_options)',
+          ],
+        },
+      ],
+    }],
   ],
   'dependencies': [
     '<(DEPTH)/tools/android/md5sum/md5sum.gyp:md5sum',
@@ -935,14 +967,6 @@
       ],
     },
     {
-      'action_name': 'main_dex_list_for_<(_target_name)',
-      'variables': {
-        'jar_path': '<(javac_jar_path)',
-        'output_path': '<(main_dex_list_path)',
-      },
-      'includes': [ 'android/main_dex_action.gypi' ],
-    },
-    {
       'action_name': 'emma_instr_jar_<(_target_name)',
       'message': 'Instrumenting <(_target_name) jar',
       'variables': {
@@ -1023,6 +1047,18 @@
             '<(test_jar_path)',
           ],
         }],
+        ['enable_multidex == 1', {
+          'inputs': [
+            '<(main_dex_list_path)',
+            '<(multidex_configuration_path)',
+          ],
+          'variables': {
+            'additional_obfuscate_options': [
+              '--main-dex-list-path', '<(main_dex_list_path)',
+              '--multidex-configuration-path', '<(multidex_configuration_path)',
+            ],
+          },
+        }],
       ],
       'inputs': [
         '<(DEPTH)/build/android/gyp/apk_obfuscate.py',
@@ -1077,16 +1113,17 @@
       },
       'conditions': [
         ['enable_multidex == 1', {
+          'inputs': [
+            '<(main_dex_list_path)',
+            '<(multidex_configuration_path)',
+          ],
           'variables': {
             'dex_additional_options': [
-              '--multi-dex',
-              '--main-dex-list-paths', '>@(main_dex_list_paths)',
+              '--main-dex-list-path', '<(main_dex_list_path)'
+              '--multidex-configuration-path', '<(multidex_configuration_path)',
             ],
           },
-          'inputs': [
-            '>@(main_dex_list_paths)',
-          ],
-        }]
+        }],
       ],
       'target_conditions': [
         ['enable_multidex == 1 or tested_apk_is_multidex == 1', {