Fix RenderTextTest.PangoAttributes test leaks; remove suppressions.

ui/gfx/render_text_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/render_text.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/break_list.h"
@@ skipping 171 matching lines @@
   RenderTextLinux* rt_linux = static_cast<RenderTextLinux*>(render_text.get());
   rt_linux->EnsureLayout();
   PangoAttrList* attributes = pango_layout_get_attributes(rt_linux->layout_);
   PangoAttrIterator* iter = pango_attr_list_get_iterator(attributes);
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
     pango_attr_iterator_range(iter, &start, &end);
     EXPECT_EQ(cases[i].start, start);
     EXPECT_EQ(cases[i].end, end);
     PangoFontDescription* font = pango_font_description_new();
     pango_attr_iterator_get_font(iter, font, NULL, NULL);
-    const string16 desc = ASCIIToUTF16(pango_font_description_to_string(font));
+    char* description_string = pango_font_description_to_string(font);
+    const string16 desc = ASCIIToUTF16(description_string);
     const bool bold = desc.find(ASCIIToUTF16("Bold")) != std::string::npos;
     EXPECT_EQ(cases[i].bold, bold);
     const bool italic = desc.find(ASCIIToUTF16("Italic")) != std::string::npos;
     EXPECT_EQ(cases[i].italic, italic);
     pango_attr_iterator_next(iter);
     pango_font_description_free(font);
+    g_free(description_string);
   }
   EXPECT_FALSE(pango_attr_iterator_next(iter));
+  pango_attr_iterator_destroy(iter);
 }
 #endif
 
 // TODO(asvitkine): Cursor movements tests disabled on Mac because RenderTextMac
 //                  does not implement this yet. http://crbug.com/131618
 #if !defined(OS_MACOSX)
 void TestVisualCursorMotionInObscuredField(RenderText* render_text,
                                            const string16& text,
                                            bool select) {
   ASSERT_TRUE(render_text->obscured());
@@ skipping 1007 matching lines @@
   EXPECT_EQ(render_text->display_rect().width() - width - 1,
             render_text->GetUpdatedCursorBounds().x());
 
   // Reset the application default text direction to LTR.
   SetRTL(was_rtl);
   EXPECT_EQ(was_rtl, base::i18n::IsRTL());
 }
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace gfx