Raise memory limit for SDCH for mobile.

R=mef@chromium.org
BUG=374917

Review URL: https://codereview.chromium.org/471403002

Cr-Commit-Position: refs/heads/master@{#289945}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289945 0039d316-1c4b-4281-b951-d872f2087c98

net/base/sdch_manager.cc

@@ -22,7 +22,7 @@ namespace net {
 #if defined(OS_ANDROID) || defined(OS_IOS)
 // static
 const size_t SdchManager::kMaxDictionaryCount = 1;
-const size_t SdchManager::kMaxDictionarySize = 150 * 1000;
+const size_t SdchManager::kMaxDictionarySize = 500 * 1000;
 #else
 // static
 const size_t SdchManager::kMaxDictionaryCount = 20;