Migrate components/data_reduction_proxy to Mojo interfaces.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index a868c5ee155fa2e7acfa69c092fbcdc50d908eca..cae4bffdd894c715e707be47d7849c24c0bda84a 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -118,7 +118,8 @@
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/content_settings/core/common/content_settings_types.h"
-#include "components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.h"
+#include "components/data_reduction_proxy/content/browser/data_reduction_proxy_host_impl.h"
+#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h"
 #include "components/dom_distiller/core/dom_distiller_switches.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/error_page/common/error_page_switches.h"
@@ -1002,10 +1003,6 @@ void ChromeContentBrowserClient::RenderProcessWillLaunch(
 #if defined(OS_ANDROID)
   host->AddFilter(new cdm::CdmMessageFilterAndroid());
 #endif
-  DataReductionProxyChromeSettings* data_reduction_proxy_settings =
-      DataReductionProxyChromeSettingsFactory::GetForBrowserContext(profile);
-  host->AddFilter(new data_reduction_proxy::DataReductionProxyMessageFilter(
-      data_reduction_proxy_settings));
 
   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
       profile->IsOffTheRecord()));
@@ -2781,6 +2778,17 @@ void ChromeContentBrowserClient::ExposeInterfacesToRenderer(
       base::Bind(&metrics::LeakDetectorRemoteController::Create),
       ui_task_runner);
 #endif
+
+  DataReductionProxyChromeSettings* data_reduction_proxy_settings =
+      DataReductionProxyChromeSettingsFactory::GetForBrowserContext(
+          render_process_host->GetBrowserContext());
+  base::WeakPtr<data_reduction_proxy::DataReductionProxyConfig> weak_config;
+  if (data_reduction_proxy_settings && data_reduction_proxy_settings->Config())
+    weak_config = data_reduction_proxy_settings->Config()->GetWeakPtr();
+  registry->AddInterface(
+      base::Bind(&data_reduction_proxy::DataReductionProxyHostImpl::Create,
+                 weak_config),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::IO));
 }
 
 void ChromeContentBrowserClient::ExposeInterfacesToMediaService(