Move webCacheManager to //components.

components/BUILD.gn

Index: components/BUILD.gn
diff --git a/components/BUILD.gn b/components/BUILD.gn
index c33ce03440c6345b3726a3bc01849302fd1ad9fa..ca07cd309dda10e6a1c225df942500cdaa3815a1 100644
--- a/components/BUILD.gn
+++ b/components/BUILD.gn
@@ -94,6 +94,9 @@ group("all_components") {
     "//components/visitedlink/browser",
     "//components/visitedlink/common",
     "//components/visitedlink/renderer",
+    "//components/web_cache/browser",
+    "//components/web_cache/common",
+    "//components/web_cache/renderer",
     "//components/web_modal",
     "//components/webdata/common",
     "//components/wifi",
@@ -170,6 +173,8 @@ group("all_components") {
       "//components/visitedlink/browser",  # Blocked on content.
       "//components/visitedlink/common",  # Blocked on content.
       "//components/visitedlink/renderer",  # Blocked on blink
+      "//components/web_cache/browser",  # Blocked on content and blink.
+      "//components/web_cache/renderer",  # Blocked on content and blink.
       "//components/web_modal",  # Blocked on content.
     ]
   }