Remove most of chrome/ and content/ usage from TranslateInfoBarDelegate

The only problematic dependencies left are WebContents (only needed for
the GetWebContents() method, which is only used by OptionsMenuModel),
and InfoBarService, which is only used to implement GetWebContents().

BUG=371845
TBR=rohitrao

Review URL: https://codereview.chromium.org/291503008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271205 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 13 insertions, 6 deletions

diff --git a/components/translate/core/browser/translate_manager.cc b/components/translate/core/browser/translate_manager.cc
index 95bc6af..dcc8c30 100644
--- a/components/translate/core/browser/translate_manager.cc
+++ b/components/translate/core/browser/translate_manager.cc
@@ -75,6 +75,10 @@ TranslateManager::TranslateManager(
       translate_driver_(translate_client_->GetTranslateDriver()),
       weak_method_factory_(this) {}
 
+base::WeakPtr<TranslateManager> TranslateManager::GetWeakPtr() {
+  return weak_method_factory_.GetWeakPtr();
+}
+
 void TranslateManager::InitiateTranslation(const std::string& page_lang) {
   // Short-circuit out if not in a state where initiating translation makes
   // sense (this method may be called muhtiple times for a given page).
@@ -239,12 +243,9 @@ void TranslateManager::TranslatePage(const std::string& original_source_lang,
 
   // The script is not available yet.  Queue that request and query for the
   // script.  Once it is downloaded we'll do the translate.
-  TranslateScript::RequestCallback callback =
-      base::Bind(&TranslateManager::OnTranslateScriptFetchComplete,
-                 weak_method_factory_.GetWeakPtr(),
-                 translate_driver_->GetCurrentPageID(),
-                 source_lang,
-                 target_lang);
+  TranslateScript::RequestCallback callback = base::Bind(
+      &TranslateManager::OnTranslateScriptFetchComplete, GetWeakPtr(),
+      translate_driver_->GetCurrentPageID(), source_lang, target_lang);
 
   script->Request(callback);
 }
diff --git a/components/translate/core/browser/translate_manager.h b/components/translate/core/browser/translate_manager.h
index d1f09fc..c29b167 100644
--- a/components/translate/core/browser/translate_manager.h
+++ b/components/translate/core/browser/translate_manager.h
@@ -35,6 +35,12 @@ class TranslateManager {
                    const std::string& accept_language_pref_name);
   virtual ~TranslateManager();
 
+  // Returns a weak pointer to this instance.
+  base::WeakPtr<TranslateManager> GetWeakPtr();
+
+  // Cannot return NULL.
+  TranslateClient* translate_client() { return translate_client_; }
+
   // Returns the language to translate to. The language returned is the
   // first language found in the following list that is supported by the
   // translation service: