Don't zoom in TextFinder if autosizing is disabled

Source/web/tests/TextFinderTest.cpp

Index: Source/web/tests/TextFinderTest.cpp
diff --git a/Source/web/tests/TextFinderTest.cpp b/Source/web/tests/TextFinderTest.cpp
index dd863774c9d67024269ad69b756d0a4766649755..24b1a51e62b78d9892d30e447d462ddd65e50ee7 100644
--- a/Source/web/tests/TextFinderTest.cpp
+++ b/Source/web/tests/TextFinderTest.cpp
@@ -10,7 +10,10 @@
 #include "core/dom/NodeList.h"
 #include "core/dom/Range.h"
 #include "core/dom/shadow/ShadowRoot.h"
+#include "core/frame/FrameHost.h"
 #include "core/html/HTMLElement.h"
+#include "core/layout/TextAutosizer.h"
+#include "core/page/Page.h"
 #include "platform/testing/UnitTestHelpers.h"
 #include "public/platform/Platform.h"
 #include "public/web/WebDocument.h"
@@ -134,6 +137,40 @@ TEST_F(TextFinderTest, FindTextSimple)
     EXPECT_EQ(20, activeMatch->endOffset());
 }
 
+TEST_F(TextFinderTest, FindTextAutosizing)
+{
+    document().body()->setInnerHTML("XXXXFindMeYYYYfindmeZZZZ", ASSERT_NO_EXCEPTION);
+
+    int identifier = 0;
+    WebString searchText(String("FindMe"));
+    WebFindOptions findOptions; // Default.
+    bool wrapWithinFrame = true;
+    WebRect* selectionRect = nullptr;
+
+    // Set viewport scale to 20 in order to simulate zoom-in
+    PinchViewport& pinchViewport = document().page()->frameHost().pinchViewport();
+    pinchViewport.setScale(20);
+
+    // Enforce autosizing
+    document().settings()->setTextAutosizingEnabled(true);
+    document().settings()->setTextAutosizingWindowSizeOverride(IntSize(20, 20));
+    document().textAutosizer()->updatePageInfo();
+
+    // In case of autosizing, scale _should_ change
+    ASSERT_TRUE(textFinder().find(identifier, searchText, findOptions, wrapWithinFrame, selectionRect));
+    ASSERT_TRUE(textFinder().activeMatch());
+    ASSERT_EQ(1, pinchViewport.scale()); // in this case to 1
+
+    // Disable autosizing and reset scale to 20
+    pinchViewport.setScale(20);
+    document().settings()->setTextAutosizingEnabled(false);
+    document().textAutosizer()->updatePageInfo();
+
+    ASSERT_TRUE(textFinder().find(identifier, searchText, findOptions, wrapWithinFrame, selectionRect));
+    ASSERT_TRUE(textFinder().activeMatch());
+    ASSERT_EQ(20, pinchViewport.scale());
+}
+
 TEST_F(TextFinderTest, FindTextNotFound)
 {
     document().body()->setInnerHTML("XXXXFindMeYYYYfindmeZZZZ", ASSERT_NO_EXCEPTION);