Implements the auto-translate on click: if you have translated

a page and are navigating to a new page in the same language by
clicking a link, the new page is automatically translated.
In order to do that I moved the language state from the navigation
entry to some dedicated class that each TabContents owns.
Also added some basic unit-testing for good measure.

BUG=35477
TEST=See bug steps. Run unit-tests.
 
Review URL: http://codereview.chromium.org/596092

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38961 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 8 deletions

diff --git a/chrome/browser/browser_browsertest.cc b/chrome/browser/browser_browsertest.cc
index fcd063d..edce8e0 100644
--- a/chrome/browser/browser_browsertest.cc
+++ b/chrome/browser/browser_browsertest.cc
@@ -457,20 +457,16 @@ IN_PROC_BROWSER_TEST_F(BrowserTest, PageLanguageDetection) {
   // Navigate to a page in English.
   ui_test_utils::NavigateToURL(
       browser(), GURL(server->TestServerPage("files/english_page.html")));
-  NavigationEntry* entry = current_tab->controller().GetActiveEntry();
-  ASSERT_TRUE(NULL != entry);
-  EXPECT_TRUE(entry->language().empty());
+  EXPECT_TRUE(current_tab->language_state().original_language().empty());
   std::string lang = ui_test_utils::WaitForLanguageDetection(current_tab);
   EXPECT_EQ("en", lang);
-  EXPECT_EQ("en", entry->language());
+  EXPECT_EQ("en", current_tab->language_state().original_language());
 
   // Now navigate to a page in French.
   ui_test_utils::NavigateToURL(
       browser(), GURL(server->TestServerPage("files/french_page.html")));
-  entry = current_tab->controller().GetActiveEntry();
-  ASSERT_TRUE(NULL != entry);
-  EXPECT_TRUE(entry->language().empty());
+  EXPECT_TRUE(current_tab->language_state().original_language().empty());
   lang = ui_test_utils::WaitForLanguageDetection(current_tab);
   EXPECT_EQ("fr", lang);
-  EXPECT_EQ("fr", entry->language());
+  EXPECT_EQ("fr", current_tab->language_state().original_language());
 }