Collapse fileapi, webkit_blob, webkit_database, quota, and webkit_common namespaces into single storage namespace

As discussed here:
https://groups.google.com/a/chromium.org/forum/#!topic/storage-dev/aQall8GOrS4

BUG=338338
TBR=cevans
NOTRY=true

Review URL: https://codereview.chromium.org/492873002

Cr-Commit-Position: refs/heads/master@{#291485}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@291485 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/browser/browser_context.cc b/content/browser/browser_context.cc
index 8acae2d..9bccfeb 100644
--- a/content/browser/browser_context.cc
+++ b/content/browser/browser_context.cc
@@ -125,7 +125,7 @@
 }
 
 // static
-fileapi::ExternalMountPoints* BrowserContext::GetMountPoints(
+storage::ExternalMountPoints* BrowserContext::GetMountPoints(
     BrowserContext* context) {
   // Ensure that these methods are called on the UI thread, except for
   // unittests where a UI thread might not have been created.
@@ -134,15 +134,15 @@
 
 #if defined(OS_CHROMEOS)
   if (!context->GetUserData(kMountPointsKey)) {
-    scoped_refptr<fileapi::ExternalMountPoints> mount_points =
-        fileapi::ExternalMountPoints::CreateRefCounted();
+    scoped_refptr<storage::ExternalMountPoints> mount_points =
+        storage::ExternalMountPoints::CreateRefCounted();
     context->SetUserData(
         kMountPointsKey,
-        new UserDataAdapter<fileapi::ExternalMountPoints>(mount_points.get()));
+        new UserDataAdapter<storage::ExternalMountPoints>(mount_points.get()));
   }
 
-  return UserDataAdapter<fileapi::ExternalMountPoints>::Get(
-      context, kMountPointsKey);
+  return UserDataAdapter<storage::ExternalMountPoints>::Get(context,
+                                                            kMountPointsKey);
 #else
   return NULL;
 #endif