Sprinkle some defensiveness into the UI tests so that they don't explode if t...

chrome/browser/download/save_page_uitest.cc

Index: chrome/browser/download/save_page_uitest.cc
===================================================================
--- chrome/browser/download/save_page_uitest.cc	(revision 19956)
+++ chrome/browser/download/save_page_uitest.cc	(working copy)
@@ -98,6 +98,7 @@
   GURL url = URLRequestMockHTTPJob::GetMockUrl(
     UTF8ToWide(std::string(kTestDir) + "/" + file_name));
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   ASSERT_TRUE(tab->NavigateToURL(url));
   WaitUntilTabCount(1);
 
@@ -120,6 +121,7 @@
   GURL url = URLRequestMockHTTPJob::GetMockUrl(
       UTF8ToWide(std::string(kTestDir) + "/" + file_name));
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   ASSERT_TRUE(tab->NavigateToURL(url));
   WaitUntilTabCount(1);
 
@@ -143,6 +145,7 @@
   FilePath dir = save_dir_.AppendASCII("c_files");
 
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   ASSERT_TRUE(tab->NavigateToURL(GURL("about:blank")));
   WaitUntilTabCount(1);
 
@@ -164,6 +167,7 @@
   GURL url = URLRequestMockHTTPJob::GetMockUrl(
       UTF8ToWide(std::string(kTestDir) + "/" + file_name));
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   ASSERT_TRUE(tab->NavigateToURL(url));
   WaitUntilTabCount(1);
 
@@ -196,6 +200,7 @@
   GURL url = URLRequestMockHTTPJob::GetMockUrl(
     UTF8ToWide(std::string(kTestDir) + "/" + file_name));
   scoped_refptr<TabProxy> tab(GetActiveTab());
+  ASSERT_TRUE(tab.get());
   ASSERT_TRUE(tab->NavigateToURL(url));
   WaitUntilTabCount(1);