Fix compilation errors with mingw

Fix minor build errors when building with mingw in the Android
Emulator's build system:
* Passing initializer list to pushAll helper can't deduce template
argument with mingw, fix by adding an explicit type.
* Add inline to image_utils helpers so that mingw doesn't think that the
functions are declared but not used.

Change-Id: I223e1a74380f9990dbab13ce41e377c3004f43b0
diff --git a/src/base/test/bottom_n_test.cpp b/src/base/test/bottom_n_test.cpp
index 8a48d30..76f0123 100644
--- a/src/base/test/bottom_n_test.cpp
+++ b/src/base/test/bottom_n_test.cpp
@@ -33,7 +33,7 @@
   {
     BottomN<int> heap(10);
     EXPECT_TRUE(heap.Empty());
-    pushAll(heap, {1, 2});
+    pushAll(heap, (int[]){1, 2});
 
     EXPECT_EQ(heap.Size(), 2);
     EXPECT_FALSE(heap.Empty());
@@ -42,7 +42,7 @@
 
   {
     BottomN<int> heap(6);
-    pushAll(heap, {1, 4, 3, 2, 2, 1});
+    pushAll(heap, (int[]){1, 4, 3, 2, 2, 1});
 
     EXPECT_EQ(heap.Size(), 6);
     EXPECT_THAT(heap.Pop(), ElementsAre(1, 1, 2, 2, 3, 4));
@@ -52,7 +52,7 @@
 TEST(BottomN, Bounds) {
   {
     BottomN<int> heap(4);
-    pushAll(heap, {1, 2, 3, 4});
+    pushAll(heap, (int[]){1, 2, 3, 4});
     EXPECT_EQ(heap.Size(), 4);
 
     heap.Push(0);
@@ -63,10 +63,10 @@
 
   {
     BottomN<int> heap(4);
-    pushAll(heap, {4, 3, 2, 1});
+    pushAll(heap, (int[]){4, 3, 2, 1});
     EXPECT_EQ(heap.Size(), 4);
 
-    pushAll(heap, {4, 4, 4, 4});
+    pushAll(heap, (int[]){4, 4, 4, 4});
     EXPECT_EQ(heap.Size(), 4);
 
     EXPECT_THAT(heap.Pop(), ElementsAre(1, 2, 3, 4));
@@ -74,10 +74,10 @@
 
   {
     BottomN<int> heap(4);
-    pushAll(heap, {4, 3, 2, 1});
+    pushAll(heap, (int[]){4, 3, 2, 1});
     EXPECT_EQ(heap.Size(), 4);
 
-    pushAll(heap, {5, 5, 5, 5});
+    pushAll(heap, (int[]){5, 5, 5, 5});
     EXPECT_EQ(heap.Size(), 4);
 
     EXPECT_THAT(heap.Pop(), ElementsAre(1, 2, 3, 4));
@@ -85,10 +85,10 @@
 
   {
     BottomN<int> heap(4);
-    pushAll(heap, {4, 3, 2, 1});
+    pushAll(heap, (int[]){4, 3, 2, 1});
     EXPECT_EQ(heap.Size(), 4);
 
-    pushAll(heap, {0, 0, 0, 0});
+    pushAll(heap, (int[]){0, 0, 0, 0});
     EXPECT_EQ(heap.Size(), 4);
 
     EXPECT_THAT(heap.Pop(), ElementsAre(0, 0, 0, 0));
diff --git a/src/decoder/test/image_utils.h b/src/decoder/test/image_utils.h
index adfded5..1e5000a 100644
--- a/src/decoder/test/image_utils.h
+++ b/src/decoder/test/image_utils.h
@@ -90,7 +90,7 @@
 }
 }  // namespace std
 
-static std::string LoadFile(const std::string& path) {
+static inline std::string LoadFile(const std::string& path) {
   std::ifstream is(path, std::ios::binary);
   EXPECT_TRUE(is) << "Failed to load file " << path;
   if (!is) {
@@ -102,7 +102,7 @@
   return ss.str();
 }
 
-static std::string LoadASTCFile(const std::string& basename) {
+static inline std::string LoadASTCFile(const std::string& basename) {
   const std::string filename =
       std::string("src/decoder/testdata/") + basename + ".astc";
 
@@ -116,7 +116,7 @@
   }
 }
 
-static void LoadGoldenBmp(const std::string& path, ImageBuffer* result) {
+static inline void LoadGoldenBmp(const std::string& path, ImageBuffer* result) {
   constexpr size_t kBmpHeaderSize = 54;
 
   SCOPED_TRACE(testing::Message() << "LoadGoldenBmp " << path);
@@ -191,9 +191,9 @@
   }
 }
 
-static void CompareSumOfSquaredDifferences(const ImageBuffer& golden,
-                                           const ImageBuffer& image,
-                                           double threshold) {
+static inline void CompareSumOfSquaredDifferences(const ImageBuffer& golden,
+                                                  const ImageBuffer& image,
+                                                  double threshold) {
   ASSERT_EQ(golden.DataSize(), image.DataSize());
   ASSERT_EQ(golden.Stride(), image.Stride());
   ASSERT_EQ(golden.BytesPerPixel(), image.BytesPerPixel());