Revert "Chromium changes to statically link ffmpeg."

media/cast/cast_unittests.isolate

Index: media/cast/cast_unittests.isolate
diff --git a/media/cast/cast_unittests.isolate b/media/cast/cast_unittests.isolate
index bf207cd4c13d043266000692cf054308135e2444..26b93953e73c8d7bafaed8192c39f17f9c2305a6 100644
--- a/media/cast/cast_unittests.isolate
+++ b/media/cast/cast_unittests.isolate
@@ -34,6 +34,13 @@
         ],
       },
     }],
+    ['OS=="linux"', {
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/libffmpegsumo.so',
+        ],
+      },
+    }],
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'files': [
@@ -42,6 +49,13 @@
         ],
       },
     }],
+    ['OS=="mac"', {
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/ffmpegsumo.so',
+        ],
+      },
+    }],
     ['OS=="mac" and asan==1 and fastbuild==0', {
       'variables': {
         'files': [
@@ -49,6 +63,13 @@
         ],
       },
     }],
+    ['OS=="win"', {
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/ffmpegsumo.dll',
+        ],
+      },
+    }],
     ['OS=="win" and (fastbuild==0 or fastbuild==1)', {
       'variables': {
         'files': [