[Experimental Framework] Move the trial token public key out of content and into the embedder.

chrome/renderer/chrome_content_renderer_client.h

Index: chrome/renderer/chrome_content_renderer_client.h
diff --git a/chrome/renderer/chrome_content_renderer_client.h b/chrome/renderer/chrome_content_renderer_client.h
index b0bb7fb96cc268523b60cb9b3e9b108b5f104b78..58a702f959bd2288cc3d1808d8cfb23e55376bf4 100644
--- a/chrome/renderer/chrome_content_renderer_client.h
+++ b/chrome/renderer/chrome_content_renderer_client.h
@@ -16,6 +16,7 @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "chrome/renderer/origin_trials/origin_trial_key_manager.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "v8/include/v8.h"
@@ -156,6 +157,7 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
       v8::Local<v8::Context> context,
       const GURL& url) override;
   bool ShouldEnforceWebRTCRoutingPreferences() override;
+  base::StringPiece GetOriginTrialPublicKey() override;
 
 #if defined(ENABLE_SPELLCHECK)
   // Sets a new |spellcheck|. Used for testing only.
@@ -206,6 +208,8 @@ class ChromeContentRendererClient : public content::ContentRendererClient {
   scoped_ptr<password_manager::CredentialManagerClient>
       credential_manager_client_;
 
+  OriginTrialKeyManager origin_trial_key_manager_;
+
 #if defined(ENABLE_SPELLCHECK)
   scoped_ptr<SpellCheck> spellcheck_;
 #endif