Make StyledLabel wrap long words

ui/views/controls/styled_label_unittest.cc

Index: ui/views/controls/styled_label_unittest.cc
diff --git a/ui/views/controls/styled_label_unittest.cc b/ui/views/controls/styled_label_unittest.cc
index c7ccdb69f346ced8593d091559563cd7f73d85b7..ab485a31ab0c86b149c63f56af729c047e70e4ba 100644
--- a/ui/views/controls/styled_label_unittest.cc
+++ b/ui/views/controls/styled_label_unittest.cc
@@ -124,6 +124,30 @@ TEST_F(StyledLabelTest, BasicWrapping) {
   EXPECT_EQ(styled()->height() - 3, styled()->child_at(1)->bounds().bottom());
 }
 
+TEST_F(StyledLabelTest, WrapLongWords) {
+  const std::string text("Thisistextasasingleword");

[msw, 2015/05/13 23:05:39]

nit: camel case words :)

[tbarzic, 2015/05/14 00:02:28]

Done.

+  InitStyledLabel(text);
+  Label label(ASCIIToUTF16(text.substr(0, text.size() * 2 / 3)));
+  gfx::Size label_preferred_size = label.GetPreferredSize();
+  EXPECT_EQ(label_preferred_size.height() * 2,
+            StyledLabelContentHeightForWidth(label_preferred_size.width()));
+
+  styled()->SetBorder(Border::CreateEmptyBorder(3, 3, 3, 3));

[msw, 2015/05/13 23:05:40]

Is this 3px border necessary? Would no border simplify the test?

[tbarzic, 2015/05/14 00:02:28]

wouldn't really simplify it, but it's not essential either.

+  styled()->SetBounds(
+      0, 0, styled()->GetInsets().width() + label_preferred_size.width(),
+      styled()->GetInsets().height() + 2 * label_preferred_size.height());
+  styled()->Layout();
+  ASSERT_EQ(2, styled()->child_count());
+  EXPECT_EQ(3, styled()->child_at(0)->x());

[msw, 2015/05/13 23:05:40]

nit: check if the origin is equal to gfx::Point()

[tbarzic, 2015/05/14 00:02:28]

Done.

+  EXPECT_EQ(3, styled()->child_at(0)->y());
+  EXPECT_EQ(styled()->height() - 3, styled()->child_at(1)->bounds().bottom());
+  EXPECT_FALSE(static_cast<Label*>(styled()->child_at(0))->text().empty());
+  EXPECT_FALSE(static_cast<Label*>(styled()->child_at(1))->text().empty());
+  EXPECT_EQ(ASCIIToUTF16(text),
+            static_cast<Label*>(styled()->child_at(0))->text() +
+                static_cast<Label*>(styled()->child_at(1))->text());
+}
+
 TEST_F(StyledLabelTest, CreateLinks) {
   const std::string text("This is a test block of text.");
   InitStyledLabel(text);