macOS: Fix build of widevinecdmadapter.plugin (issue #2314)

BUILD.gn

@@ -789,6 +789,7 @@ static_library("libcef_static") {
     "//third_party/libxml",
     "//third_party/WebKit/public:blink",
     "//third_party/widevine/cdm:headers",
+    "//third_party/widevine/cdm:widevinecdmadapter",
     "//third_party/icu",
     "//third_party/zlib:minizip",
     "//tools/v8_context_snapshot:v8_context_snapshot",
@@ -805,11 +806,6 @@ static_library("libcef_static") {
     "//v8",
   ]
 
-  if (!is_mac) {
-    # TODO(cef): Enable for Mac once Widevine build errors are resolved.
-    deps += [ "//third_party/widevine/cdm:widevinecdmadapter" ]
-  }
-
   if (is_win) {
     sources += gypi_paths2.includes_win + [
       "libcef/browser/browser_main_win.cc",
@@ -1366,8 +1362,7 @@ if (is_mac) {
       "$root_out_dir/cef_extensions.pak",
       "$root_out_dir/devtools_resources.pak",
       "$root_out_dir/v8_context_snapshot.bin",
-      # TODO(cef): Restore this line once Widevine build errors are resolved.
-      # "$root_out_dir/$widevine_cdm_path/widevinecdmadapter.plugin",
+      "$root_out_dir/$widevine_cdm_path/widevinecdmadapter.plugin",
     ]
 
     public_deps = [
@@ -1376,8 +1371,7 @@ if (is_mac) {
       ":pak_200_percent",
       ":pak_devtools",
       ":pak_extensions",
-      # TODO(cef): Restore this line once Widevine build errors are resolved.
-      # "//third_party/widevine/cdm:widevinecdmadapter",
+      "//third_party/widevine/cdm:widevinecdmadapter",
       "//tools/v8_context_snapshot:v8_context_snapshot",
     ]
 

patch/patch.cfg

@@ -331,4 +331,9 @@ patches = [
     # https://bitbucket.org/chromiumembedded/cef/issues/2274
     'name': 'win_rt_2274',
   },
+  {
+    # macOS: Fix build of widevinecdmadapter.plugin.
+    # https://bitbucket.org/chromiumembedded/cef/issues/2314
+    'name': 'mac_widevine_2314',
+  },
 ]

patch/patches/mac_widevine_2314.patch

@@ -0,0 +1,21 @@
+diff --git third_party/widevine/cdm/BUILD.gn third_party/widevine/cdm/BUILD.gn
+index a3eac59cc2eb..d14e71e0319b 100644
+--- third_party/widevine/cdm/BUILD.gn
++++ third_party/widevine/cdm/BUILD.gn
+@@ -111,14 +111,8 @@ if (widevine_cdm_binary_files != []) {
+     ]
+ 
+     if (is_mac) {
+-      ldflags = [
+-        # Not to strip important symbols by -Wl,-dead_strip.
+-        "-Wl,-exported_symbol,_PPP_GetInterface",
+-        "-Wl,-exported_symbol,_PPP_InitializeModule",
+-        "-Wl,-exported_symbol,_PPP_ShutdownModule",
+-      ]
+-      #TODO(jrummell) Mac: 'DYLIB_INSTALL_NAME_BASE': '@loader_path',
+-    } else if (is_posix && !is_mac) {
++      ldflags = [ "-Wl,-install_name,@loader_path/libwidevinecdm.dylib" ]
++    } else if (is_posix) {
+       cflags = [ "-fvisibility=hidden" ]
+     }
+   }

tools/make_distrib.py

@@ -842,11 +842,11 @@ elif platform == 'macosx':
       valid_build_dir = build_dir
       dst_dir = os.path.join(output_dir, 'Debug')
       make_dir(dst_dir, options.quiet)
+      framework_dst_dir = os.path.join(dst_dir, '%s.framework' % framework_name)
       copy_dir(os.path.join(build_dir, 'cefclient.app/Contents/Frameworks/%s.framework' % framework_name), \
-               os.path.join(dst_dir, '%s.framework' % framework_name), options.quiet)
-      copy_file(
-          os.path.join(script_dir, 'distrib/mac/widevinecdmadapter.plugin'),
-          dst_dir, options.quiet)
+               framework_dst_dir, options.quiet)
+      move_file(os.path.join(framework_dst_dir, 'Resources/widevinecdmadapter.plugin'), \
+                os.path.join(dst_dir, 'widevinecdmadapter.plugin'), options.quiet)
 
       if not options.nosymbols:
         # create the symbol output directory
@@ -869,11 +869,11 @@ elif platform == 'macosx':
     dst_dir = os.path.join(output_dir, 'Release')
     make_dir(dst_dir, options.quiet)
     if mode != 'client':
+      framework_dst_dir = os.path.join(dst_dir, '%s.framework' % framework_name)
       copy_dir(os.path.join(build_dir, 'cefclient.app/Contents/Frameworks/%s.framework' % framework_name), \
-               os.path.join(dst_dir, '%s.framework' % framework_name), options.quiet)
-      copy_file(
-          os.path.join(script_dir, 'distrib/mac/widevinecdmadapter.plugin'),
-          dst_dir, options.quiet)
+               framework_dst_dir, options.quiet)
+      move_file(os.path.join(framework_dst_dir, 'Resources/widevinecdmadapter.plugin'), \
+                os.path.join(dst_dir, 'widevinecdmadapter.plugin'), options.quiet)
     else:
       copy_dir(
           os.path.join(build_dir, 'cefclient.app'),