Renaming `BrowsingDataHelper::IsValidScheme`, as it's poorly descriptive.

chrome/browser/browsing_data_database_helper.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/browsing_data_database_helper.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ skipping 62 matching lines @@
                  origin, name));
 }
 
 void BrowsingDataDatabaseHelper::FetchDatabaseInfoOnFileThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   std::vector<webkit_database::OriginInfo> origins_info;
   if (tracker_.get() && tracker_->GetAllOriginsInfo(&origins_info)) {
     for (std::vector<webkit_database::OriginInfo>::const_iterator ori =
          origins_info.begin(); ori != origins_info.end(); ++ori) {
       const GURL origin(UTF16ToUTF8(ori->GetOrigin()));
-      if (!BrowsingDataHelper::HasValidScheme(origin)) {
+      if (!BrowsingDataHelper::HasWebScheme(origin)) {
         // Non-websafe state is not considered browsing data.
         continue;
       }
       WebSecurityOrigin web_security_origin =
           WebSecurityOrigin::createFromDatabaseIdentifier(
               ori->GetOrigin());
       std::vector<string16> databases;
       ori->GetAllDatabaseNames(&databases);
       for (std::vector<string16>::const_iterator db = databases.begin();
            db != databases.end(); ++db) {
@@ skipping 70 matching lines @@
   clone->pending_database_info_ = pending_database_info_;
   return clone;
 }
 
 void CannedBrowsingDataDatabaseHelper::AddDatabase(
     const GURL& origin,
     const std::string& name,
     const std::string& description) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   base::AutoLock auto_lock(lock_);
-  if (BrowsingDataHelper::HasValidScheme(origin)) {
+  if (BrowsingDataHelper::HasWebScheme(origin)) {
     pending_database_info_.insert(PendingDatabaseInfo(
           origin, name, description));
   }
 }
 
 void CannedBrowsingDataDatabaseHelper::Reset() {
   base::AutoLock auto_lock(lock_);
   pending_database_info_.clear();
 }
 
@@ skipping 47 matching lines @@
         info->description,
         web_security_origin.toString().utf8(),
         0,
         base::Time()));
   }
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&CannedBrowsingDataDatabaseHelper::NotifyInUIThread, this));
 }