Move content/common/gpu/client/{media files} => media/gpu/ipc/client

BUG=586388

Review URL: https://codereview.chromium.org/1860973002

Cr-Commit-Position: refs/heads/master@{#385763}
diff --git a/content/common/BUILD.gn b/content/common/BUILD.gn
index bfe0ba7ba..b0fee26f 100644
--- a/content/common/BUILD.gn
+++ b/content/common/BUILD.gn
@@ -178,6 +178,7 @@
     "//ipc/mojo",
     "//media",
     "//media:shared_memory_support",
+    "//media/gpu/ipc/client",
     "//media/gpu/ipc/common",
     "//media/midi",
     "//mojo/common:common_base",