Merge to XFA: Fix leaks in the embedder tests themselves.

Also change EmbedderTest::TearDown() to match the destruction order in
Chromium's PDF code.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1138143003

(cherry picked from commit 61ffad8df484ab9b3f7d2f5519ec470fbc023b88)

Review URL: https://codereview.chromium.org/1138973004
diff --git a/fpdfsdk/src/fpdftext_embeddertest.cpp b/fpdfsdk/src/fpdftext_embeddertest.cpp
index 394e1a9..8384a41 100644
--- a/fpdfsdk/src/fpdftext_embeddertest.cpp
+++ b/fpdfsdk/src/fpdftext_embeddertest.cpp
@@ -36,7 +36,7 @@
   FPDF_TEXTPAGE textpage = FPDFText_LoadPage(page);
   EXPECT_NE(nullptr, textpage);
 
-  const char expected[] = "Hello, world!\r\nGoodbye, world!";
+  static const char expected[] = "Hello, world!\r\nGoodbye, world!";
   unsigned short fixed_buffer[128];
   memset(fixed_buffer, 0xbd, sizeof(fixed_buffer));
 
@@ -134,6 +134,7 @@
   EXPECT_EQ(0xbdbd, fixed_buffer[10]);
 
   FPDFText_ClosePage(textpage);
+  UnloadPage(page);
 }
 
 TEST_F(FPDFTextEmbeddertest, TextSearch) {
@@ -239,6 +240,7 @@
   FPDFText_FindClose(search);
 
   FPDFText_ClosePage(textpage);
+  UnloadPage(page);
 }
 
 // Test that the page has characters despite a bad stream length.
@@ -252,6 +254,7 @@
   EXPECT_EQ(13, FPDFText_CountChars(textpage));
 
   FPDFText_ClosePage(textpage);
+  UnloadPage(page);
 }
 
 TEST_F(FPDFTextEmbeddertest, WebLinks) {
@@ -277,7 +280,7 @@
   EXPECT_EQ(25, FPDFLink_GetURL(pagelink, 0, nullptr, 0));
   EXPECT_EQ(26, FPDFLink_GetURL(pagelink, 1, nullptr, 0));
 
-  const char expected_url[] = "http://example.com?q=foo";
+  static const char expected_url[] = "http://example.com?q=foo";
   unsigned short fixed_buffer[128];
 
   // Retrieve a link with too small a buffer.  Buffer will not be
@@ -358,4 +361,5 @@
 
   FPDFLink_CloseWebLinks(pagelink);
   FPDFText_ClosePage(textpage);
+  UnloadPage(page);
 }