[Contextual Search] Add Mojo-enabled API component.

chrome/browser/android/contextualsearch/contextual_search_manager.cc

Index: chrome/browser/android/contextualsearch/contextual_search_manager.cc
diff --git a/chrome/browser/android/contextualsearch/contextual_search_manager.cc b/chrome/browser/android/contextualsearch/contextual_search_manager.cc
index c8b41abd68a97fa200bc5a5110e76b3159d05e6f..4f2fdffb38ec608fc0a8fd398b25d1fe9a1e826a 100644
--- a/chrome/browser/android/contextualsearch/contextual_search_manager.cc
+++ b/chrome/browser/android/contextualsearch/contextual_search_manager.cc
@@ -13,11 +13,13 @@
 #include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
 #include "chrome/browser/android/tab_android.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/search/contextual_search_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/android/window_android_helper.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/android/content_view_core.h"
+#include "content/public/browser/render_process_host.h"
 #include "jni/ContextualSearchManager_jni.h"
 #include "net/url_request/url_fetcher_impl.h"
 
@@ -138,6 +140,21 @@ void ContextualSearchManager::OnIcingSelectionAvailable(
       start_offset, end_offset);
 }
 
+void ContextualSearchManager::EnableContextualSearchServiceForView(
+    JNIEnv* env,
+    jobject obj,
+    jobject j_overlay_content_view_core) {
+  ContentViewCore* overlay_content_view_core =
+      ContentViewCore::GetNativeContentViewCore(env,
+                                                j_overlay_content_view_core);
+  if (overlay_content_view_core != NULL) {
+    ContextualSearchService::GetInstance()->SetContextualSearchProcess(
+        overlay_content_view_core->GetWebContents()
+            ->GetRenderProcessHost()
+            ->GetID());
+  }
+}
+
 bool RegisterContextualSearchManager(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }