Stop bundling flash on Mac and Linux.

chrome/BUILD.gn

Index: chrome/BUILD.gn
diff --git a/chrome/BUILD.gn b/chrome/BUILD.gn
index b3a7b8c3356400bd6d5a2af4a4af065e200c1d9e..b89da2390de5b9c8ec391ca653c007d60b1c7ec5 100644
--- a/chrome/BUILD.gn
+++ b/chrome/BUILD.gn
@@ -259,8 +259,8 @@ if (!is_android && !is_mac) {
 
     # Precompiled plugins that need to get copied to the output directory.
     # On Mac, internal plugins go inside the framework, so these
-    # dependencies are on chrome.dll. On Windows, these are not bundled.
-    if (!is_win) {
+    # dependencies are on chrome.dll.
+    if (!is_win && (!is_linux || is_chromeos)) {
       deps += [ "//third_party/adobe/flash:flapper_binaries" ]
     }
 
@@ -841,19 +841,6 @@ if (is_win) {
   }
 
   if (is_chrome_branded) {
-    bundle_data("flash_player_plugin") {
-      sources = [
-        "$root_out_dir/PepperFlash/PepperFlashPlayer.plugin",
-        "$root_out_dir/PepperFlash/manifest.json",
-      ]
-      outputs = [
-        "{{bundle_root_dir}}/Internet Plug-Ins/PepperFlash/{{source_file_part}}",
-      ]
-      public_deps = [
-        "//third_party/adobe/flash:flapper_binaries",
-      ]
-    }
-
     bundle_data("widevine_cdm_library_binaries") {
       sources = [
         "$root_out_dir/$widevine_cdm_path/libwidevinecdm.dylib",
@@ -879,9 +866,6 @@ if (is_win) {
         "//third_party/widevine/cdm:widevine_cdm_manifest",
       ]
     }
-  } else {
-    group("flash_player_plugin") {
-    }
   }
 
   group("widevine_cdm_library") {
@@ -1009,7 +993,6 @@ if (is_win) {
       ":chrome_framework_locales",
       ":chrome_framework_plugins",
       ":chrome_framework_resources",
-      ":flash_player_plugin",
       ":widevine_cdm_library",
       "//build/config/sanitizers:deps",
       "//chrome/app/nibs:chrome_xibs",