Creating new gn arg: enable_all_proguard_optimizations.

remoting/android/BUILD.gn

Index: remoting/android/BUILD.gn
diff --git a/remoting/android/BUILD.gn b/remoting/android/BUILD.gn
index 45a184b84a3858d771c945ced5685a36aa900101..ffe4edc1dad8fadd5c6d72174f0753cffb473244 100644
--- a/remoting/android/BUILD.gn
+++ b/remoting/android/BUILD.gn
@@ -148,26 +148,28 @@ remoting_localize("remoting_test_apk_manifest") {
   output = "$root_gen_dir/remoting/android_test/{{source_name_part}}"
 }
 
-instrumentation_test_apk("remoting_test_apk") {
-  android_manifest = "$root_gen_dir/remoting/android_test/AndroidManifest.xml"
-  android_manifest_dep = ":remoting_test_apk_manifest"
-  apk_name = "ChromotingTest"
-  apk_under_test = ":remoting_apk"
-  java_files = [
-    "javatests/src/org/chromium/chromoting/EventTest.java",
-    "javatests/src/org/chromium/chromoting/MockInputStub.java",
-    "javatests/src/org/chromium/chromoting/SwipePinchDetectorTest.java",
-    "javatests/src/org/chromium/chromoting/TapGestureDetectorTest.java",
-    "javatests/src/org/chromium/chromoting/TouchEventBuilder.java",
-    "javatests/src/org/chromium/chromoting/TouchEventGenerator.java",
-    "javatests/src/org/chromium/chromoting/TouchInputStrategyTest.java",
-    "javatests/src/org/chromium/chromoting/test/util/MutableReference.java",
-  ]
-  deps = [
-    ":remoting_android_client_java",
-    "//base:base_java",
-    "//base:base_java_test_support",
-  ]
+if (!enable_all_proguard_optimizations) {
+  instrumentation_test_apk("remoting_test_apk") {
+    android_manifest = "$root_gen_dir/remoting/android_test/AndroidManifest.xml"
+    android_manifest_dep = ":remoting_test_apk_manifest"
+    apk_name = "ChromotingTest"
+    apk_under_test = ":remoting_apk"
+    java_files = [
+      "javatests/src/org/chromium/chromoting/EventTest.java",
+      "javatests/src/org/chromium/chromoting/MockInputStub.java",
+      "javatests/src/org/chromium/chromoting/SwipePinchDetectorTest.java",
+      "javatests/src/org/chromium/chromoting/TapGestureDetectorTest.java",
+      "javatests/src/org/chromium/chromoting/TouchEventBuilder.java",
+      "javatests/src/org/chromium/chromoting/TouchEventGenerator.java",
+      "javatests/src/org/chromium/chromoting/TouchInputStrategyTest.java",
+      "javatests/src/org/chromium/chromoting/test/util/MutableReference.java",
+    ]
+    deps = [
+      ":remoting_android_client_java",
+      "//base:base_java",
+      "//base:base_java_test_support",
+    ]
+  }
 }
 
 shared_library("remoting_host_jni") {